Sorry bout yer luck candle, but ya gotta admit from the other guys perspective...Ha Ha Ha. Wish I had that kinda luck. I'm always the guy that enters a game just in time to hear those killstreaks called in.
Corner camping isn't playing, its the video game equivalent of tripping people as they walk by
I've always said it shouldn't give game changing streaks... I'd say maybe the Stealth Chopper. Let them be able to get something in the air, but leaving the better streaks that can easily change the game out. Then you also have engineer, don't like the UAV that you earned? Here! Have another chance at your swarm!