Questions in Team Fortress 2

"You were good son, real good, maybe even the best..." - Rick May (Soldier)
Hello, Team Fortress 2 community
idk why but when I play spy and get a backstab, my game crashes
can anybody tell me how to fix this?
how does the achievement engineer thing work in tf2?
i press !givemeall but it doesn't work
ok is the jamesthedog also known as wolfthe(whatevergoeshere)
Whenever I try to load into a map TF2 crashes
Does anybody know how to fix this?

Which TF2 class would you fit most?
(Vote and then answer in the comments if you'd like!)
3 votes Voting finished
what class do you play as in tf2?