Newbie (team)killing method of the week:
Sometimes at the start of a map you have to option to spawn in the Havoc attack chopper. Noobs sometimes spawn in them quicker than you, plonking you on top the chopper about 100 miles from anywhere.

During the 20 second countdown, chuck out an ammo pack, stuff half a dozen C4's onto the chopper canopy, and await takeoff.
Upon lift-off, jump, detonate C4 and watch the chopper as it flips over, midair, and smashes into the floor upside down in a mass of flames. That'll teach you jerks for stealing the chopper!
