k, here's my moment:
i spawned at the first attacker base as and engineer with scar-L, tracer dart, RPG-7, and the vehicle specialization. right when i started parachuting down, i saw an enemy tank trying to go up the hill to the attacker base, so i shot a tracer dart at it, and then put 1 RPG-7 in it. it ended up blowing up before i finished parachuting... i wasn't expecting any bonus, but i got +30 for a parachute kill. pretty fun lol