Sniper match-ups

Class			Strategy
Sniper	vs	Scout	Avoid Scouts whenever possible. Scouts are fast and difficult to track while scoped and they are more than fast enough to chase you down should they reach you. Try and take down a Scout with a fully charged shot before they reach you, and watch for their Pistol shots. The only time you should be actively seeking Scouts is when they are running away with the Intel, and your team is nowhere in sight. Note that a fully charged shot will kill any Scout in one hit so don't bother aiming for the smaller target of their heads but instead aim for the torso. If a Scout does engage you, backpedal and fire your SMG, then charge him with your Kukri when he gets within Scattergun range. Using the Huntsman in a small path is an advantage against the Scout because the arrow is much harder to dodge than the sniper sight.
Sniper	vs	Soldier	Don't get caught in close quarters, where the Soldier has a massive advantage. Be wary, as Soldiers can send rockets towards your position to force you behind cover. Dodge the rockets and try to take him out while keeping yourself moving if you can. Rocket jumping will allow them to appear in close range unexpectedly - it is not recommended to fight them if they should appear in your Sniping nest as their rockets will usually take you down swiftly.
Sniper	vs	Pyro	Due to oddly shaped heads, achieving a headshot may be difficult. Additionally, if a Pyro is aware of your presence, it may use its Flamethrower to mask your view of its head with flames. Pyros will likely be a fairly rare sight, as they try very hard to avoid being in places where Snipers are effective. If the Pyro has somehow gotten close, your best option is your Submachine Gun. Stay at medium range while laying down fire until the Pyro goes down. If the Pyro gets you within range of his Flamethrower it's quite likely you'll die, so get in as much damage as you can while looking for the nearest body of water or Health pack to neutralize the fire. A Pyro with a Backburner will eat through you in an instant, so watch your back. Also, watch out for the Pyro's Flare Gun which can set you on fire and mess up your aim. Strafe to avoid the relatively slow shots. Having Jarate helps greatly against enemy Pyros, as it allows you to extinguish his flames.
Sniper	vs	Demoman	Be alert about blind-spots where they can safely hide and lob grenades and Sticky bombs at you. With these they can turn your Sniper nest into a deathtrap. At such a point, it may be best to wait until your teammates take the Demoman out rather than risk death. One strategy not often used is to scope and shoot the stickies individually, this isn't always useful as if the Demoman is nearby chances are they'll come for you. Otherwise though if you find one or two that could be a threat and there are no enemies in the immediate area take the time to remove the stickies.
Sniper	vs	Heavy	If you are at a distance, the spread of his Minigun fire should do minimal damage, allowing you to take him out before it mounts up. If a Heavy were to somehow get to your Sniper spot (likely accompanied by a Medic), it would be wise to simply run whilst attacking with your Submachine Gun, because a Heavy's Minigun will cut you up in an instant. Because the Heavy is a slow moving target, at mid range he is a perfect target for the Huntsman. Fire a single arrow at the Heavy's head and drop back behind cover.
Sniper	vs	Engineer	If the Sentry Gun is anything over level one and is accompanied by an Engineer with a Dispenser hiding behind it, there is nothing you can do as the sentry will block your attempts at killing the Engineer, so just ignore it. A Sniper is very effective at taking out a level one Sentry though, as a 100% charged snipe will kill it in one shot, removing any option for the Engineer to repair it. Snipers can also be very effective at taking out a sentry when helped by a Soldier or another sniper, just wait for it to be hit by a rocket then instantly fire a 100% charged shot at it, which should destroy it as the Engineer won't have had time to repair it from the rocket. If the sentry is unguarded, however, then charge up to 100% then shoot rapidly, taking the sentry down as quick as possible after the Engineer knows he needs to repair it. This is made much easier with the Huntsman.
Sniper	vs	Medic	Medics are not too threatening on their own. Simply gun them down with your Submachine Gun or engage them in a melee duel. Snipers are the most viable candidate for killing Medics who are paired up with pesky Medic buddies, and as such, should be treated as high priority targets. Their high speed and constant strafing makes a headshot difficult, but due to their relatively low health, a fully charged shot to the body will kill the Medic. It's best not to leave them alive, they can take cover behind their medic buddy and regenerate their health.
Sniper	vs	Sniper	Protecting your team-mates from a pesky Sniper can assist heavily in winning a map (though overdoing this can lead to 'Sniper-wars', where both of you are of no direct use to each others teams at all!). Other Snipers remain a priority target, as you are to them. Shuffle about constantly if you're in their crosshairs, and aim for the head. If you find yourself getting knocked out more than you are knocking them out, then it might be time to switch classes. A good strategy against other Snipers is to duck just before taking a shot out of cover. Most times the other Sniper while take his shot at where your head used to be, leaving him vulnerable. If you have a Huntsman and the other sniper has a rifle, a good strategy for getting close enough is to fire your SMG while advancing until you're in range.
Sniper	vs	Spy	Watch your back; the Spy is the Sniper's nemesis. You hate Spies. Very much. Spy check people you notice hanging around the battlements. Spies will often disguise themselves as other Snipers in popular sniping locations, so be especially wary of any other Snipers that come close. Also sometimes decent sniping locations are also used as Engineer nests so watch for Engineers as well. Watch the kill log in the top-right for team-mates getting Backstabbed, friendly buildings being sapped, or enemy sappers being removed. If there's another Sniper on the deck, try to put him between you and the entrance to the Sniper deck so that you have some advanced warning. Better him than you. Given a threat to personal space, melee combat is highly recommended. After all, you have a much bigger Knife. Jarate also helps, as it augments your Kukri's damage and makes the spy unable to safely escape even if he does kill you. If the Spy is wielding his Revolver, strafe and gun or hope for a melee Crit, as 3 hits at close range are fatal. It's important to use Jarate against the spies because Jarate will short out their cloak and allow your teammates to take them out quickly. Using the Razorback will also provide protection from spies when near teammates and make them take more time to kill you with the Revolver, but it will be ineffectual if you are not paying attention to your surroundings or you may fail to notice having your Razorback removed while scoped and be backstabbed normally. The Tribalman's Shiv is also effective for killing spies as the bleeding effect nullifies their cloak ability, and the long term damage may kill the spy should he try to run away or end up killing you.

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