BOTA:16

That's the anti-sniper class. Take assaulter, load up 40mm smoke and take the dart as your secondary. Dart them in the face and then pop a smoke at their feet. Better yet find a group of them (for whatever reason they seem to flock together) and introduce them to Mr. Carl Gustav. Of course the 2nd one only work on friendly fire servers.

Got this from my GSP (Hypernia)