Originally posted by iown3hookers
rather than have to go into a cage match like a fag, wait until an enemy calls in a helicopter. works best with the 6ks helicopter, as it goes down with one aths4. the pavelow emits a flare, so you will need to have scavenger on for that to go - so disregard the idiots talking about a pavelow.
the rest of the info is correct. once the helicopter starts to spin, continue shooting it with your machine gun. slight of hand is nice for this. every shot counts as a kill.
also, note - you don't have to be the one who shoots it down initially. if you see a heli spinning that is the enemies and have cold blooded on, shoot at it, it will still count as a kill.
I've coldbloodedpro 6 in one match before. pretty nice getting like 39000 xp for doing nothing.
also, it doesn't seem to matter how many people shoot at the helicopter before it blows up. I've been on an entire team cold blooded glitching and the heli made it to the edge of the map before blowing up.
Sorry to disappoint you, but on PS3 it works only with Pavelow. I'm not sure if it's the same with other consoles.