I have two. You see, snipers, I'm okay with. Just go sniper and headshot them when they're not looking. Pyros, ehh, not bad when you're a heavy or a sniper far away. Annoying as heck as a spy, but I don't play that class too often. Nonono, The two most annoying classes ever? Scouts and Demomen. Scouts are like roaches. You kill one, and two more pop up to take their place. Pyros and Heavies make short work of them, usually, but when they run away, they're just too fast to catch. Demomen are the worst. Pyros are usually okay against them, compression blast helps, but to use it, you have to get within the rage of the DEADDLYYY STIIIICKY BOMMMBBSSS. Also, Demomen are bigger campers than snipers, and Snipers are meant to be the KINGS of camping >.>