c:\program files\steam\steamapps\[username]\team fortress 2\tf\materials\models\weapons\
Simply remove the "team fortress 2" folder from your Steam folder or uninstall it on Steam.
Put it into your maps folder
yes
O.o i don't know foo!
Not yet.
not really, no.
no
there are 37 including cloaking and engineering stuff like that too
no
none specifically. Team Fortress 2 does NOT give you a virus.
Team Fortress 2 was initially a Quake Mod (Team Fortress), for Capture the Flag and Team Deathmatch
Playing the game, will give you drop items/weapons and achievement items/weapons. You can also craft, trade, or purchase items and weapons.