對付間諜

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我爸爸就是這樣教我對付叛徒的。 點擊試聽 — 工程師

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間諜是一種利用速度與心機在敵方隊伍後方搞破壞的職業，主要的攻擊方式便是利用他的背刺能力從背後迅速終結任何對手。良好的觀察能力是對抗間諜的不二法門；間諜能夠滲透到隊伍中的方式並不多，且一名有經驗的玩家通常可以在沒有激烈戰鬥的場合輕易地辨認出間諜。
由於火力的貧弱，間諜一但被發現後通常會試圖脫離戰鬥而非直接交戰。但請記住間諜偽裝與背刺的手法非常多元，甚至可以製造出被殺死的假象。
火焰兵優異的間諜檢查能力讓他們被認為是隊伍中對抗敵方間諜的首選職業。

一般對應法

特性	對應法
角色	間諜通常會利用匿蹤與偽裝試圖滲透到敵方隊伍的後方。多朝著角落和有補給的地方開火好抓出匿蹤的間諜；一但發現間諜，請警告你的隊友，並在間諜有可能造成任何破壞之前先殺死他。 由間諜偽裝成的隊友在行動上會與一般隊友有些不同；多多進行間諜檢查好避免成為間諜的受害者。
生命值	由於僅有125生命值，間諜其實是十分脆弱的。暴露行蹤的間諜是個很容易被殺死的目標；但他也有可能利用死亡送終者製造死亡的假象，因此請隨時保持警覺。
速度	間諜偽裝時的移動速度會與他們偽裝的職業一樣，只有在間諜偽裝成比他們的預設速度還快的職業時才會有例外。
武力	間諜本身的武裝火力非常弱，但如果讓他成功滲透進隊伍中，間諜便可以輕易的利用背刺迅速終結敵人。間諜看見敵方生命值的能力也讓他們能利用左輪手槍殺死被削弱的敵人。

Weapon Specific

A list of useful tidbits about the Spy's tools, and how to counter them.

Primary Weapons

Weapon	Anti-Spy strategy
Revolver / Big Kill	The Revolver fires quickly and accurately; make yourself a more difficult target by strafing from side to side. Increase the distance between you and the Spy so that his Revolver deals less damage.
全能大使	A Spy using this weapon will use similar tactics to a Sniper using his Sniper Rifle. Use cover and make erratic movements to reduce your chances of getting headshot. Take advantage of the Spy's increased vulnerability due to the Ambassador's emphesis on aiming for the head, as well as its slower firing speed.
局外人左輪	Spies using the L'Etranger often use hit-and-run tactics, making them particularly elusive. Once you find a Spy, light him on fire or douse him in Jarate/Mad Milk to render cloaking useless.
脅威使	A Spy equipped with the Enforcer must wait an extra 0.5 seconds to cloak; this can make the difference between killing the Spy and losing track of him. Prevent the Spy from resorting to this weapon, as its 20% damage bonus will give him the upper hand.
鑽紋響尾蛇	The Diamondback will only store Crits if the Spy successfully saps a building; Engineers and Pyros equipped with the Homewrecker must be extra diligent in protecting buildings from Sappers.

Secondary Weapons

Weapon

Anti-Spy strategy

電子破壞器

A Spy can quickly replace any Sappers removed from the target building(s); locate the Spy (who is most likely in disguise) and kill him before removing his Electro Sapper(s). An Engineer who needs to leave his buildings should have another Engineer or a Pyro guard them while he is away. Keep special notice of the Teleporters of you and your teammates. Left unguarded, a Spy can place an Electro Sapper on one end and continue to replace those that are removed by the other end, eventually sapping more health that an Engineer can repair and destroying both ends. This can deal a huge blow to your team.

Melee Weapons

Weapon	Anti-Spy strategy
Knife / Saxxy	If you hear the screams of teammates behind you and notice their deaths as backstabs on the kill feed, turn around immediately to avoid being the next victim of a Spy ambush. The Knife does less damage than most other classes' melee weapons, so attack a Spy head on to discourage him from switching to his Revolver. Always keep an eye on the Spy while in close quarters combat; one false turn will give him a chance to backstab you.
Your Eternal Reward / Wanga Prick	Be careful traveling alone, as a Spy using this weapon can instantly replace you without your team realizing it. Traveling in a line is also very dangerous, especially if no one watches the back. Communication is a vital countermeasure against Your Eternal Reward. As this weapon prevents use of the Disguise Kit, have your team set up multiple Sentry Guns to limit where enemy Spies can lurk for their first backstab(s).
陰謀苦無	The Conniver's Kunai reduces a Spy's max health to 60 HP, but it allows the Spy to receive the health of whomever the Spy backstabs - up to an overheal of 180 Hit Points. If he has just left his team's base, he should be relatively easy to kill; if left unchecked, he could become a more formidable foe. You can locate one of these Spies by the presence of Overheal on an injured "teammate."
暴利之刃	The Big Earner is similar to the L'Etranger, where a Spy will use either one (or both) to use hit-and-run tactics against your team; he becomes even more problematic if he also uses the Dead Ringer. Burn or douse him to render cloaking useless; killing the Spy should take less time, since the Big Earner reduces his health to 100 HP.

PDA Weapon

Weapon	Anti-Spy strategy
偽裝工具	Walk into your teammates; if you cannot pass through one, he is an enemy Spy in disguise. Occasionally attack your teammates, preferably with fire, Jarate, Mad Milk, or weapons that cause bleed damage; disguised enemy Spies will immediately be affected. For more info, see Spy checking.

Cloaking Devices

• Cloaked Spies can be revealed if they are doused, lit, or bleeding. Try using Jarate, Mad Milk, Flamethrowers, and melee weapons that cause bleed damage in areas where you suspect a Spy is hiding.
  • Emerging from water also compromises a Spy's invisibility. Try chasing a Spy in and out of water.
• The Invisibility Watch and Dead Ringer can be recharged by picking up ammo; Spies can pick up ammo even while they're cloaked. If health kits and ammo boxes are mysteriously disappearing nearby, there may be a cloaked Spy trying to elude you.
• The Invisi Watch and the Cloak and Dagger will show a silhouette of a cloaked Spy if he bumps into an enemy or is hurt (even by a fall); if a Spy's silhouette is revealed, press against him and/or attack to keep him visible until he is killed.
• Disguised Spies can recieve health and ammo from enemy Dispensers, even while they are cloaked. Check near and on top of Dispensers occasionally.
• If you hear an excessive amount of voice responses near you from an unknown source, check the area around you for Spies trying to spook you while cloaked.
• Spies make a fairly loud, distinct noise when they uncloak. Be sure to scan the area around you if you hear it, and spycheck teammates that appear shortly after the sound was made.
• If you see a Spy disappear, alert your team and tell them (in team-only chat, so the Spy won't notice and flee) exactly where you are. If there are teammates nearby, call for help and spycheck them just in case.

Weapon	Anti-Spy strategy
Invisibility Watch / Enthusiast's Timepiece	If a Spy tries to flee with the Invisibility Watch, grab all surrounding ammunition boxes and dropped weapons to prevent him from increasing his cloaking time, and thus shortening the distance he can run before his Cloak deactivates.
隱身匕首	Spies using the Cloak and Dagger will often wait in corners or secluded areas to recharge their Cloak. Check those areas if you think a Spy is nearby. A Spy may also choose to hide near you, yet at a different elevation; anywhere you can reach, a Spy may be lying in wait there to try to catch you off guard. The Cloak and Dagger cannot pickup ammo to replenish cloak; while this limits the distance he can travel, it can also make it harder for you to notice a Spy's presence.
死亡送終者	The Spy has huge damage reduction while cloaking with the Dead Ringer. Try to isolate and/or out-damage him before he gets away. An easy way to follow the Spy is to set him on fire, use Jarate, or use Mad Milk, and follow the trail he leaves, which doesn't disappear on "death" When dueling someone, if you are not given a dueling point after they die, then they died with the Dead Ringer activated. If you are having a shoot out with a Spy and he suddenly stops firing despite looking at you, he is probably waiting for you to trigger his Dead Ringer. Be extra careful if you're staying in the surrounding area. Likewise, when a Spy dies in one hit, you can be very sure you triggered his Dead Ringer. If a Scout activates the Cloak with the Candy Cane, the free medikit won't drop. If he uses the Holy Mackerel, the FISH KILL! symbol will not be displayed, instead showing the FISH HIT x1 symbol (unless he primed it after you hit him, then hit him again). The Dead Ringer can only be activated when it's fully charged. When a Spy wielding the Dead Ringer uncloaks the charge is at least half-empty, so finish him off as quickly as you can and be sure he doesn't take any ammunition crates. Killing a Spy with a primed Dead Ringer will not activate effects on certain weapons, such as the overheal of the Conniver's Kunai, or the quick-disguise of Your Eternal Reward.

Class Set

Set	Anti-Spy strategy
The Saharan Spy	Try to check your back at all times, especially when you are by yourself, for a Spy who decloaks while equipped with this set will be practically silent. If a Saharan Spy is not using the Dead Ringer, his Cloak will blink a half-second longer if he bumps into enemy players; have your team populate key pathways to make it easier for these Spies to become exposed, and keep hurting or pressing up against any that flee to make them obvious to nearby teammates.
The Man of Honor	A Spy using this set tends to have a more aggressive playing style; if he cloaks, expose him, and kill him before he resorts to his Enforcer.
The Invisible Rogue	The Invisible Rogue item set provides no weapons, bonuses of debuffs. When engaging a Spy with this set, be ready for anything.

See also

• Team strategy
• Spychecking