There are already some great articles out there about how to play sniper, but I wanted to focus a little more on one aspect of sniping. As a sniper, there come unfortunate times where you must fight classes one on one. This becomes exceptionally difficult for you, because your main weapon is extremely hard to use at close ranges consistently, so I’m here to give you some tips on how to fight each class one on one from both a distance and close quarters. Note: This guide assumes you’re using the standard weapons for sniper.
Scout
Scouts are the fastest class in the game, so hitting their heads is a bit of a problem. At long ranges, it’s best to go for body shots rather than headshots. Scouts only have 125 health, so you don’t even need to fully charge a shot to kill them in one hit. If you’re having trouble hitting them, or you’re not very good at aiming, try to go for multiple quick body shots. Without charging, your rifle does 50 damage, so if you can get 3 fast shots off against him, he’ll be dead. Even if you can only get 1 or 2 shots off, it dramatically increases your chances of killing him with your SMG when he gets close to you.

At close ranges, your chances of hitting a Scout with a sniper are slim to none. Whip out your SMG and fire at him while backpedaling and dodging to the nearest medpak. Both of you have extremely low health, so health is extremely valuable in this situation. If the scout tries to make a run for the nearest medpack before you, it probably means he’s at a very low health. This is the point where you should whip out your rifle. You should know where the medpack is, so scope in to it, and prepare to snipe the scout right before he actually gets the medpak. DON’T waste a shot trying to go for the headshot on the Scout, because chances are that he’ll die from the partially charged body shot anyway.
Soldier
Soldiers are fairly easy to snipe, because of their slow speed and relatively large heads. However, in a one on one situation, your task becomes a lot harder, because they can rocket jump and cover large distances very quickly. From a distance, you’ll want to go for headshots or charged body shots. If he rocket jumps towards you, and he probably will, DO NOT stand there and try to snipe him in the air. If you do this, you just become a sitting duck for him as he flies towards you from above. Contrary to what your common sense would tell you, run TOWARDS him if he would land on top of you, or PERPENDICULAR to him if he’s not that close. Doing this will create the largest gap between you and him. If you pass directly under him while he is rocket jumping, he will have to turn 180 degrees and re-aim at you. This gives you time to get away from him, and prepare for a rifle shot.

If his rocket jump is successful, and he gets close to you, don’t pull out your SMG or kukri. The soldier has too much health to be killed quickly with an SMG, and the kukri is basically useless because it’s impossible to get close enough to use it. Even if you do get close enough to use the kukri, the soldier has more health than you, so a point blank rocket will kill you and leave the soldier still alive. The best bet at this point is to use the rifle, and to just take really fast quickscope shots at him. Because of his slow speed, his head shouldn’t be hard to hit, and because he took damage from the rocket jump, it should usually almost kill him. If it doesn’t, at this point it is okay to use the SMG and finish him off. However, when trying to snipe him, don’t spend too long aiming at his head, because you just become an easy target for his powerful rockets. Take very fast shots at his head, and if you miss, dodge and try again. These battles are usually the fastest of the one on ones, and it won’t make a difference if you try and make a run for the nearest medpak.
Pyro
Pyros are, in my opinion, one of the easier classes to kill as sniper. At long range, there is nothing they can do except dodge and shoot flares at you. Dodge the flares and headshot them. ‘Nuff said.

At close range, all 3 weapons are equally good against the pyro. Personally, I like to pull out my rifle and just headshot them, and maybe finish them off with the SMG. This is generally easy to do, because many pyros don’t strafe or jump very much, which makes it easy to shoot their head. If you’re on fire while this is happening though, aim for their chests. The fire causes you to automatically recoil, and with luck, it will recoil into their heads. If it doesn’t recoil, you will at least hit their chest and cause enough damage that you can finish them off with the any of the 3 weapons. Also, while you’re doing this, try to head towards a medpak, but don’t stop shooting at him, because chances are you’re going to die unless you kill him first.
Demo
All right. Basically, demo is the exact same thing as soldier. They have a little less health than the soldier, and are a little faster, but the exact same tactics apply to taking them on one on one.

Heavy
Everybody would almost universally agree that heavies are the easiest class to snipe. At long ranges, their minigun is still very accurate, and all you have to do is hide behind cover until you see them stop shooting, and the pop out for an easy headshot with your rifle.

Heavies have the most health in the game, so the only way to make a significant dent in his health is to use your sniper rifle. At close quarters, the best thing to do is to just run away from the heavy while firing your SMG at him. Once you are at a safe distance, try to find cover and headshot him. Remember, he will be wounded from your SMG, so one charged headshot will kill him. He is too slow to keep up with you, so if he ever gets to close, simply run away and try and snipe him again. Also, because he can’t keep up with you, you can run to the nearest medpak and heal up, no problem.
Engi
Engis are probably the 2nd easiest class to kill. At long ranges, their weapons are basically useless, and it is very easy to snipe them while they’re standing still trying to harass you with their pistol, or when they’re working on their buildings. There’s really nothing they can do to stop you, so just dodge a little and headshot them.

In close quarters combat, it is similar to if you were fighting a scout, except slower. You have the choice of using any of your 3 weapons this time, and you can use either the pyro or the scout strategy for fighting them. Just like the scout, you should also run towards a medpak, because you both have low health.
Medic
Yet again, I’m just going to be lazy, and say that medics are just like engis or pyros in long range combat. The needlegun actually does quite a bit of damage to you, so when you’re trying to snipe medics, don’t stand in place too long, because you can die very easily from a mass of needles.

Medics are really quite annoying when it comes to fighting them in close combat though. Your main close quarters combat weapon, the SMG, is nearly useless against their powerful needlegun. Their needlegun does even more damage than your SMG and it gets even worse, because they have more health than you. If they happen to have the blutsauger equipped, which many of them do, you’re at even more of a loss, because they can regain almost half of the health they do to you. The other weapon that is useless against a medic is the kukri. If they’re decent at melee combat, you’re basically dead because it only takes 2 hits from a saw to kill you, but it takes 3 hits from a kukri to kill them. The best thing that you can do to kill a medic is to try your luck at close quarters sniping. A single headshot will kill them, and if you can get off a few body shots, that should kill them as well. These battles are also fast in comparison to the soldier, so don’t bother going to the nearest medpak, unless it’s close.
Sniper
There is only one real strategy to winning a one on one fight with another sniper. If in doubt, assume that they have both better aiming skills than you, and they have a better reaction time. The best thing to do, is to jump around and dodge, and randomly take extremely quick shots at their head. Immediately after you shoot at them, crouch, even if you think you hit them. If they happen to be aiming at your head, and you miss, your crouching may throw off their aim and make them miss the shot. If you did hit them, then you crouched for nothing, but it’s not like it really matters.

There’s an art even to being a weighted companion sniper.
When fighting one on one with a sniper, anything goes. You can try and close quarters snipe them, kukri them to death, or kill them with the SMG. It’s the same as fighting an engi, except they don’t have a shotgun to point blank you with. Health is also a big issue here, and just like the engi and the scout, try and head towards the nearest medpak, but remember, don’t just travel in a straight line path. That just spells headshot.
Spy
Spies are very similar to engineers in the respect that they stand still often while trying to shoot you. The same tactics apply to them as sniping an engi, except they do have a very powerful ambassador that can headshot. As long as you don’t stand still, you should be fine.

Right Before the kill
In close combat, they’re pretty much just like fighting a sniper or an engi. All 3 weapons will work fine, but remember to not turn your back towards the spy. Doing so will just set him up for a backstab.
Well, that’s it for this tutorial, and I hoped you gained some valuable tips for taking on people in 1v1 battles. Take this advice on to the battlefield, and hopefully you will win that next mano-a-mano deathmatch.