ÜberCharge 战术

“

我已充能完毕！

点击试听（英语）

— 医生

”

本条目列出了一些实用的医生ÜberCharge 战术。

战术

ÜberCharge 的获取

医生拥有两种可以协助积攒 ÜberCharge 或减少 ÜberCharge 流失的工具。

过载充能锯

过载充能锯是一件可解锁的医生近战武器，使用该武器每击中一次敌人就可以获得 25% 的 ÜberCharge 能量，使用过载充能锯的嘲讽成功杀敌可以获得 100% 的能量，或者该嘲讽攻击的目标处于无敌状态下，则会获得 50% 的 ÜberCharge 能量。因此过载充能锯是一件极其强大的工具，可以根据其使用方式来改变ÜberCharge部署在攻击和防御这两个方面的平衡。

关于过载充能锯，需要牢记的一点是，它的攻击速度比正常的要慢 20%，简单来说就是最快只能一秒一下。因此，对于想保全自己尽量不受伤害的医生来说，在面对长时间的作战时，选用主武器往往会更加安全。

在尝试攻击敌人以增加更多的 ÜberCharge 能量进度之前，医生应该先注意他们当前的 ÜberCharge 积攒进度。如果医生当前只有较少的 ÜberCharge 能量，那么他可以找机会攻击敌人来增加能量，就算没成功被反杀，也不会有什么损失。而如果当前有很多的 ÜberCharge 能量，贸然使用过载充能锯攻击敌人的话，可能会反杀并丢失所有的ÜberCharge能量，因此最好还是踏踏实实地治疗队友来补满剩下的进度。

医生也要记清楚敌人的兵种、状态和游戏意识。虽然攻击低血量的间谍、被围堵在友军后方的侦察兵，以及缺乏检查意识的狙击手相对比较安全，但尝试对有意识的火焰兵或机枪手使用同样的手段的话，则很有可能被反杀。

用过载充能锯积攒能量一定要记住适可而止，不要贪刀，更没必要把敌人给杀死。医生可以打一下敌人就迅速跑回自己队友身边，这样既能攒到四分之一的能量，又能保证自己的安全。打了就跑，风险更低。

维塔锯

维塔锯是医生一件近战武器，它可以让玩家在死亡后依然可以保留最多 60% 的 ÜberCharge，其保留程度取决于攻击敌人时所收集的器官数量，每个器官最多保留 15% 的 ÜberCharge（上限为 4 个器官，总计 60%）。和过载充能锯一样，维塔锯也可以根据其使用方式来改变ÜberCharge部署在攻击和防御这两个方面的平衡。

维塔锯的负面属性是将医生的最大生命值从 150 点降低到 140 点。装备维塔锯时应该牢记这一点，在行动时保持谨慎。

维塔锯最大的优势在于减少了医生在死掉复活后重新积攒 ÜberCharge 所需要的时间，因为其收集的器官可以让 ÜberCharge 能量积攒的起点提前。医生也可以利用这点来打乱敌人的阵脚，在他们以为已经解除了威胁而松懈时，带着另一批充能完毕的 ÜberCharge 再次登场。

与过载充能锯一样，维塔锯也鼓励医生参与战斗，收集器官以便增加 ÜberCharge 的留存率。而过载充能锯不同的是，维塔锯的攻击需求是有封顶的。因此，医生在收集 4 个器官后就不需要再加入战斗了，因为留存率已经到达上限，更多的攻击不仅不会带来多少显著的效果，还可能让医生在作战中被反杀，因为装备此武器时医生的生命值上限要比正常的要低，更容易被杀死。

使用医疗枪策略

医疗枪所释放的无敌冲锋很适合用来突破敌人防线。其无敌能力能够让你与你的治疗对象在敌人密集的炮火中毫发无伤。这种时候，你应该和你的同伴在无敌时间内尽可能多摧毁敌人的建筑物以及尽可能多杀敌人，以便其他的队友进行推进。

选择适当的时间来释放无敌冲锋，试着在你的治疗对象即将被敌人的攻击打中或是生命值不多的时候使用。一般来说，你等的时间越久，效果就越好。当然，在被人杀掉前用掉。

一旦开启无敌冲锋，你与你的搭档的主要任务就是尽量杀敌、破坏建筑，毕竟这时你是无法占领控制点的。当然，你也不能推进炸弹推车或是拿起情报。

在使用无敌冲锋时，你最大的威胁有两个：爆炸攻击的击退效果以及火焰兵的压缩空气爆破。所以，通常情况下，由医生走在前面吸引火力来掩护自己的搭档。尤其是在对付步哨枪的时候。
- 同上，要特别注意火焰兵，因为他们能用火焰喷射器把你吹的远远的；也许更糟糕，把你吹到角落里让你困在里面，直到你的无敌效果消失。因此，如果可以，最好优先解决火焰兵。

如果你不是医生的治疗对象，那么就跟在他们后面，以他们的无敌作为掩护。要记住一点，即使他们处于无敌状态，能够进行攻击的只有医生的治疗对象，因此你要尽你的所能来为他们提供火力支援。

当你的队友进行无敌冲锋的时候，能够吸引大部分敌人的注意力，因为他们都想要在无敌效果消失时把你的队友刚掉。所以，不要白白浪费掉你队友的努力，利用这个空档冲到敌人的控制点去。

如果，在你开启无敌冲锋的同，敌人的医生也开启了无敌冲锋，那么最好就是不要去管他们，尽可能地去破坏敌人建筑物或是杀死敌人，反正也没有什么你杀不死的。

通过快速在多个治疗对象之间切换，你可以为队名队友同时开启无敌冲锋。但是，如果你释放无敌的对象超过一个人的时候，那么你的超级冲锋能量的消耗速度将会变快。

特别要注意地图上某些危险的地方，例如地图Nucleus以及地图Steel中的E点，即使你使用了无敌，掉到下面去你依然会挂掉。
- 同理，你也要小心，别站在敌人的传送装置出口旁边，即使你开启了无敌冲锋，你依然会被从传送装置出来的敌人撞死。

作为医生，你可以为自己开启无敌冲锋，这样你就会变得刀枪不入，然后快速的切换出你的充能锯来攻击敌人，无论有没有打中敌人都马上切换回医疗枪恢复无敌状态。你的充能锯能够通过击中敌人来为你补充超级冲锋能量，这样能够延长你的无敌时间。如果熟练，你可以不断地在无敌与攻击状态之间切换，从而重创敌人。这个方法被称作医生单人战术或是孤胆医生战术。

反医疗枪策略

对付无敌冲锋的最好方法是以牙还牙，使用另一个无敌冲锋去对付它。在防守时，至少要有一名医生储存着无敌冲锋能量以备所需。无敌对无敌时，最好的方式就是站在对方面前以阻挡对方前进(就跟个木桩一样挡在敌人面前别人他们前进就是了)，以消耗对方的能量。

即使你打不死无敌的敌人，但是他们依然会被步哨枪、火箭或是爆破手爆炸攻击或是火焰兵压缩空气爆破的击退效果推回去。主要目标是敌人的医生，只要把他从他的搭档身边弄走即可。

爆破手也很适合对付无敌冲锋。当你听到敌人开启了无敌冲锋，那么就在地上放置一些黏性炸弹并躲到一边去等他们过来，当前面一个敌人冲到黏性炸弹的位置时就引爆它们，把他炸上天去。
- 当然，你也可以当前面的敌人一通过就引爆炸弹，会很可能把敌人与他的医生炸开，这样做不但能破环敌人的无敌冲锋，还能多杀个敌人加分。
- 记住，好好利用地形或是障碍来帮助自己。最好就是把他们其中一个或是两个都炸到角落去或是炸下楼梯。
- 最后要提醒的是：不要把黏性炸弹放置在墙上或是天花板上，这么做通常没有什么效果（特殊情况除外），你需要把它们放置在地上而且还要放的集中点，至少要放置两颗才会有效果。不同的敌人需要不同数目的炸弹才能将它们炸飞 – 一名无敌的重机枪手需要5颗或是更多的粘性炸弹才能将他炸飞，所以，最好对付跟在他身后的医生。

士兵也可以通过朝着无敌状态的敌人脚部发射火箭来将它们炸飞。试着把他们打到角落去或是把他们打下楼去。如果可以，最好对着医生攻击，使他与队友脱离开来。

另一个对付无敌冲锋的好方法就是使用火焰兵的压缩空气爆破。你可以轻松地把敌人吹的远远的，而且还能吹好一段时间。
- 如果可以，最好去把为敌人释放无敌的医生吹走。大多数时候他们都会冲在前面，而不知道自己的医生搭档被别人弄走了。等他们发现的时候，已经太迟了。
- 对付无敌的士兵或是爆破手的时候，尽可能地把他们的火箭或是炸弹吹开，以减少自己所受的伤害。

最常用的，用来对付敌人无敌冲锋的办法就是使用步哨枪。此时工程师有两个选择：躲在步哨枪后面并不断地为其维修，或是躲起来并随时准备重建步哨枪。
- 如果，冲过来的是敌人重机枪手，那么最好不要靠过去或是能无敌即将结束时再过去。如果工程师躲在步哨枪后面并不断进行维修而且身后还有补给器提供支援的话，那么一般不会有什么危险。但是，如果敌人冲过来了，那么最好还是撤退。
- 如果冲过来的是敌人的火焰兵而且他已经靠得很近，那么工程师必死无意；如果敌人的无敌能量还没有用完，那么步哨枪也只能多活几秒钟。所以，一旦遇到这种情况，那么还是考虑下撤退吧。
- 如果冲过来的是敌人的爆破手，而且他使用的是榴弹枪的话，那么工程师应该躲在步哨枪后进行维修，虽然可能会被炸死，但是你的步哨枪应该能扛过对人的攻击。但如果敌人使用黏性炸弹发射器的话，只要3颗黏性炸弹就可以摧毁一挺无人遥控的3级步哨枪。
- 使用牧马者遥控器的话，能够为你的步哨枪提供防护盾，可阻挡大量的敌人攻击伤害，而且你也可以遥控步哨枪摧毁粘性炸弹，所以你的步哨枪在这种情况下都能扛住敌人的无敌冲锋。如果敌人爆破手直接以你作为目标的话，那么还是撤退为妙。更多详情请查看工程师战术。

你也可以直接去堵着敌人的路。虽然你会很快被对方宰掉，但是你的牺牲绝非无意义，这样坐至少能够消耗对方1-2秒钟的无敌时间，尤其是他们懒得朝你开火的时候。如果你的走位不错，那么，至少或许，你能够把敌人的医生给拦下来，让他和队友脱离，而且你还很可能会活着。这个方法很适合装备了原子撞击饮料的侦察兵使用，用得好的话，可以消耗敌人6秒钟的无敌时间。
尽管敌人会时刻注意四周的情况，但是你也可以使用传送装置来撞死无敌的敌人。如果敌人和医生一起站在传送装置出口上，那么你一次就可以把他们撞死，虽然这种情况确过可能发生，但是需要你有很好的运气才行。

使用闪电战医疗枪策略

另见：闪电战冲锋枪

士兵是首选的搭档，由于其火箭的高威力以及溅射范围。很多时候，敌人还没能来得及反应就被炸个粉身碎骨了。

你也可以选择为爆破手使用闪电战冲锋，这样他就可以使用暴击黏性炸弹来解决敌人或是封住敌人的重生点门口。暴击状态的黏性炸弹可以秒杀绝大多数的敌人。如果有可能，最好是为使用苏格兰防御者的爆破手使用闪电战冲锋，因为这样他能够更加精确地引爆炸弹。

如果是在宽敞的室外，那么你可以为重机枪手释放闪电战冲锋。因为他的机枪是即时命中类型的武器而且暴击攻击不受距离修正的影响；所以此时的重机枪手无论对近距离还是远距离的敌人都是非常恐怖的敌人。

在进行防守时，先等待敌人的无敌冲锋使用完后再释放你的闪电战冲锋。否则，无敌效果会抵消你的暴击伤害，导致你浪费冲锋能量。

注意背后！当你释放闪电战冲锋的时候，你绝对是敌人的头号目标，由于你此时并不是处于无敌状态，所以敌人的间谍只要把你背刺掉，就能轻易地打断闪电战冲锋的效果。

事实上，你无法使用一些普通医疗枪补充能量的技巧来帮闪电战医疗枪加速能量补充。但是，闪电战医疗枪补充能量的速度要比原来医疗枪快25%，这样会让你更快的补充能量而不至于还没有补满能量就被敌人做掉。

由于闪电战医疗枪能更快的补充能量，因此很多时候，那些使用普通医疗枪的敌人医生会成为你的枪下亡魂。

记住一点，建筑物是对暴击攻击具有抵抗效果，也就是说你的暴击攻击对建筑来说只有普通攻击的威力。所以当你的闪电战冲锋准备据就绪了，那么记得往敌人堆里冲而不是建筑物。

反闪电战医疗枪策略

一般来说，此时你要尽快地解决敌人的医生。虽然闪电战冲锋非常可怕，但毕竟不是无敌，所以你还是能够击杀对方。

如果你是士兵并且你的营队的支援补充满了能量，那么在敌人释放闪电战冲锋的时候，你也要启动你营队的支援。因为它能为你消除敌人暴击攻击的伤害加成并且给予你额外的防御力。

如果当敌人使用闪电战冲锋的是士兵或是爆破手，那么作为一名火焰兵，你还是有能力去对付他们的。当他们开火的时候，你可以把火箭或是炸弹反弹回去，最好是以敌人的医生为目标。

作为士兵或是爆破手，你的攻击力非常不错，所以你应该直接以敌人的医生作为目标进行攻击，从后发起进攻是个好选择但并不是唯一的选择。通常，敌人医生的治疗对象正全神贯注地屠杀你的队友而不会注意到你的存在。

使用快速治疗枪策略

另见：快速医疗枪

总的来说，快速医疗枪特别适合快速占点。对比原版医疗枪，快速医疗枪的治疗速度快40%，超能冲锋蓄积速度快10%。尽管超量治疗上限相比其他医疗枪来说只有50%。

奇怪的是，快速医疗枪的50%超能治疗上限能让医生在非战斗期间快速蓄积超能冲锋。因为队友没法达到150%的血量上限，所以它总能以最高速度积攒超能冲锋。

快速治疗枪的高速治疗特性很适合维持一大群人的血量并保持推进状态。在使用的时候，试着跟上队伍的同时让他们保持50%以上的血量。在遭受重火力打击的时候可以使用其超能冲锋，然后治疗尽可能多的队友。

When the ÜberCharge is deployed, the patient and the Medic are healed at triple the default healing rate, and both are immune to movement effects such as Knockback, stun, and slowdown.
- This is a huge benefit if there are Sentry Guns on a point, as it allows the Medic and his patient to destroy it with ease if they are not killed by the damage.
- The Quickfix's ÜberCharge is effective against airblasts, as any knockback is negated.

反快速治疗枪策略

Make a Medic with the Quick-Fix your primary target when close to an objective or healing a group. Try to take them out before they get a chance to deploy their Übercharge.
The Quick-Fix, like the Kritzkrieg, does not make the Medic and his target invulnerable. When a Medic deploys an Über with the Quick-Fix, focus all of your team's fire on the Medic to give you a chance of taking him down quickly.
A Sniper or Spy can instantly kill a Quick-Fix ÜberCharged Medic with a single backstab or headshot. As Sniper, remember that the Medic is also overhealed; charge your shots before firing.
Don't try to use Knockback to stop the Übercharge. Utilize a Kritzkrieg ÜberCharge to swiftly kill the Medic and his pocket.

使用疫苗注射枪策略

另见：疫苗注射枪

Whereas other ÜberCharges are primarily built up over a long time and released at an opportune moment to blow a hole in the enemy lines, the Vaccinator stacks up multiple charges very quickly and is more effective at constant pressure than a single push.
It is important to know the enemy team's composition and loadouts. A team with mostly Heavies, Scouts, Snipers, and level 2 Sentry Guns should be easy to push into with a bullet-resisting Über, while stock Demomen and Shotgun-less Soldiers are stymied by an explosives-resisting Über. Fire is a much more situational resistance and should be employed in the face of a Pyro ambush more than as an attempt to move up.
Patients tend to be more cautious with a Vaccinator Über than other ÜberCharges due to the risk of taking unresisted damage from unexpected sources. Proper communication is necessary to ensure the patient and Medic know what the plan is.
It is important to note that you are vulnerable to all melee weapons. Keep alert and watch out for Demoknights or Spies, who can easily kill you in one hit.

反疫苗注射枪策略

The Vaccinator's main weakness is that its Über can only have one resistance per charge. Switch weapons to something that is not resisted before attacking the Medic; this forces the Medic to use another charge or allow you to ignore the majority of the damage resistance.
If possible, use a variety of damage types to attack the Medic and his patient. For example, attack the Medic with your Rocket Launcher as a Soldier such that he switches to blast resistance, allowing a friendly Sniper to kill the Medic with a headshot.
If you have no weapons that are not currently being resisted, then do not attempt to attack the Übercharged pair, as it will do minimal damage and simply allow the Medic to build his ÜberCharge faster.
The Vaccinator does not protect players against melee attacks. If you have no other option, try charging the Medic with your melee weapon while his patient is distracted.

无敌链

无敌链，又称冲锋链，是以2名医生为一个单位的、需要高度默契的战术技巧。所需的装备为过载充能锯以及医疗枪，目的为长时间维持无敌状态并尽可能地消灭敌人。

想要成功的使用这个战术，首先其中一名医生需要事先准备好一次无敌冲锋。2名医生则分为攻击和守卫。具体操作为：守卫医生事先准备好一次无敌冲锋能量。一旦开始行动，攻击医生在前使用充能锯攻击敌人并借此补充无敌冲锋的能量，而守卫医生则在后面释放无敌冲锋。如果顺利的话，攻击医生应该能够在无敌效果消失前令无敌冲锋能量补充完毕；此时两者交换角色，原先的守卫医生转变为攻击医生用充能锯攻击敌人，而原先的攻击医生则转变为守卫医生为前者释放无敌冲锋。

这个战术技巧需要两名医生之间有良好的默契与配合。两个人都需要注意双方的无敌冲锋能量剩余状况，过程中哪怕出一小点差错，都会导致战术失败。

使用无敌链战术能够轻易地在敌人队伍中清理出一块无人地带，也能够在进行强攻或是全面防守时使用。虽然其效果可能一般，但是却合适用来对付敌人的建筑或是清理类似控制点一类的重要区域。但是，无敌链很容易被火焰兵利用压缩空气打断，或是侦察兵凭借速度优势来进行封路以浪费无敌时间。作为在前面负责进攻的医生，你别忘了自己还可以使用注射枪或是吸血鬼针筒枪来对付他们。至于那些移动缓慢的敌人，通常都是不错的磨刀对象。

如果无敌链断开了，那么2名医生要以最快的速度分散撤退，并在下一次超级冲锋准备就绪时重新集合。

Chain ÜberCharge (Medi Gun)

Chain ÜberCharge, also known as an Überchain, is a tag team technique that allows two Medic players, both equipped with the Ubersaw and Medi Gun, to maintain a constant state of invulnerability.

To successfully perform this technique, at least one player must have built up an ÜberCharge beforehand. The first player must then deploy his charge on the second, who in turn must use his Ubersaw to attack enemy players and subsequently build up his own Übercharge meter. Once it is ready, the second player must then quickly deploy his ÜberCharge on the first Medic (usually before the first ÜberCharge is used up), who in turn switches to his Ubersaw and attacks enemies to build up his ÜberCharge meter. If this chain can be repeated successfully, both Medics can remain invulnerable for extended periods of time whilst killing a multitude of enemies.

The technique requires good communication between the two Medics. Both should be aware of the status of both ÜberCharges in order to continue the chain uninterrupted, as well as knowing when to break off the chain should something go wrong.

Chain ÜberCharges can be an effective strategy for clearing a certain area of enemies, pushing through a strong defense, or heading off an incoming attack. It is less effective, however, against buildings or for completing certain objectives such as capturing a point. The chain can be easily broken by Pyros utilizing the compression blast ability to separate the Medics, or with Scouts luring the chain into chasing them and wasting time. The attacking Medic, though, is not limited to using his Syringe Gun or Blutsauger to fend such classes off. Slower classes are a priority for the chain, as the Medics can easily reach and attack them.

Should the chain be broken, both Medics should escape the area and regroup later with another ÜberCharge ready.

When using the Invulnerability Überchain, different tactics should be used based on the classes you are facing:

Scout

Don't bother chasing after a Scout. It is unlikely you will be able to hit them unless they run into your melee range.

Soldier

Soldiers are a good class to target. However, try not to put too much distance between you, your helper, and your target Soldier, as they may use their Rocket Launcher to push you away from the other Medic.

Pyro

Pyros are better off left alone, considering they can easily airblast your chain apart. However, a Pyro using the Phlogistinator is an ideal target since they lack their airblast ability.

Demoman

Demomen are slow and therefore good targets. However, watch out, as they may use their explosives to blast you away from your other Medic.

Heavy

Heavies are the easiest targets. They lack speed and cannot knock you back while evading you. Their high health also lets you gain a full ÜberCharge from a single Heavy.

Engineer

Engineers are a good class to target, unless they are being guarded by a Sentry Gun. Sentry Guns will easily push you back and away from your other Medic.

Medic

Other Medics are not much of a problem to you. However, they move just as quickly as you do and are usually not worth your time to chase.

Sniper

Snipers are a good target. They may have their back turned depending on where you encounter them, so it will be easy to hit them with your Ubersaw.

Spy

Spies are a good target. They are just as fast as you but are powerless to push you back. They are unable to backstab you since you are invulnerable. However, they will probably cloak away from you.

Chain Übercharge (Kritzkrieg)

This method requires a Medic with a Kritzkrieg and an Ubersaw working with a Heavy with a Holiday Punch.

Firstly, the Medic builds up the Übercharge to 100% and uses it on a Heavy with the Holiday Punch. When an enemy is immobilized and starts laughing, the Medic switches to his Ubersaw and performs the Uberslice kill taunt on the victim, killing him and restoring the Medic's Übercharge. The cycle is now ready to be repeated again.

This method is far more viable than the double-Medic Chain Übercharge because when things do not go as planned, the Medic and Heavy can easily fend for themselves, while the Medic pair does not have the same defensive capability. However, since this method does not use the Invulnerability Übercharge, the Heavy and Medic are still vulnerable to enemies while chaining. Even though this method requires the Heavy to land only a single hit on an enemy with the Holiday Punch while the double-Medics require 4 strikes of the Ubersaw, a Heavy is much slower than a Medic, forcing the Heavy to rely on ambushing an enemy (and also because he is not Invulnerable).

Tactics for the Kritzkrieg variant are similar to the Medi Gun variant, with the exception that you need to ambush enemies rather than approach head-on because you're slower and more vulnerable. Because you are not Invulnerable, in the event where you approach multiple enemies, the Heavy needs to kill off all enemies with his other weapons. A last enemy can be spared so that he can be used for the Chain Übercharge.

ÜberCharge combination strategies

Deploying multiple ÜberCharges on one patient can be very helpful. However, it can also be wasteful, depending on how it's done and what types of charges are used.

ÜberCharge + Kritzkrieg

This is the best type of combination ÜberCharge. A player who is completely invincible and can deal critical hits can be a dynamo of pain against the other team. However, the Medic deploying the Kritzkrieg should be cautious, as he is still vulnerable, and the entire assembly remains vulnerable to knockback. This combination is best used versus a large force of high-health players, as it can quickly take down even fully-overhealed Heavy-Medic pairs without trouble.

Kritzkrieg + Megaheal (Quick-Fix)

This combination is the second-best one. While it doesn't provide the invulnerability of the ÜberCharge, the patient is receiving an increased healing rate and the standard healing and overheal of the Kritzkrieg. The Kritzkrieg Medic should still hang back, as he is vulnerable. However, the Quick-Fix and Kritzkrieg build ÜberCharge 10% and 25% faster respectively than the stock Medi Gun, allowing for more frequent use and easier coordination. This combination is best used versus a large force of Soldiers, Demomen, and Pyros, as it deals significant damage while preventing knockback which could separate the Medic and patient.

Kritzkrieg + Vaccinator

Similar to the previous combination, with the patient taking less damage from particular sources instead of being healed of damage quickly. The Vaccinator Medic is not as vulnerable as a Quick-Fix Medic would be, and the stream of critical hits erupting from the patient should deter the usage of unresisted melee attacks. The Vaccinator also builds ÜberCharge 67% faster, allowing this combination to be used often.

ÜberCharge + Megaheal

This combination is less effective than the previous ones, as the Megaheal's bonus healing is wasted on an invincible player. However, it will still provide knockback immunity, making this combination ideal for assaulting a large sentry nest or sticky trap, where the patient would be otherwise rendered useless by knockback. Although the Quick-Fix Medic has an increased heal rate, he should be cautious, as he is the most vulnerable.

Megaheal + Vaccinator

Strictly speaking, resisting damage of one type and quickly healing damage from other types is not much of an improvement over a single invulnerability ÜberCharge. That said, this combination has the Quick-Fix's immunity to knockback and can be built much quicker than a regular Über.

ÜberCharge + ÜberCharge / Kritzkrieg + Kritzkrieg

Deploying two charges one after another in order to double the length of the effect can be effective in heavily-fortified areas that a single Über cannot break through. However, unless the recipient is a Heavy or a Pyro, they will be forced to spend most of the second charge either reloading their main weapon or firing a secondary one, which lowers the effectiveness of this strategy. Often, a team may best effect such a push with two separately affected teammates.

Megaheal + Megaheal

The increased heal rate makes the target practically invulnerable to any damage which isn't instantly lethal. This pairing builds 25% faster than a standard Übercharge, but provides similar invulnerability.

Vaccinator + Vaccinator

If the two Vaccinator charges are on different resistances (bullet and explosive being the best choice for such a combo due to fire being comparatively rare), the patient becomes heavily resistant to the majority of weapons and so can wade through enemy fire without taking much damage. However, the overall effect is similar to a Megaheal without the knockback immunity. Only one Medic with two Vaccination charges is required to use this combo effectively, making it viable for single Medic setups.

ÜberCharge + Vaccinator

As the Vaccinator's sole purpose is to reduce incoming damage, combining it with an ÜberCharge is pointless. The only reason to use this would be an urgent heal for the Vaccinator Medic if a health kit is not nearby. Due to the fast ÜberCharge build rate of the Vaccinator, this is not too much of a waste.

More than two charge types

A skilled player with a triple Über can be very devastating indeed to the enemy team, being immune to everything thrown at them while blasting critical hits. However, putting all the Medics' eggs in one basket is more often than not a poor idea - a single player immune to everything can be avoided, but three players each under the effect of a different charge is much harder to deal with, and so would be a better strategy.

参见

医生战术