The classes: One with your desired streak(s) One with UAV, CUAV, IMS 1) Earn the airdrop you want to dupe. 2) Change classes to the one with low streaks 3) Get 1 kill away from streak 4) Doubletap Y (Or triangle) 5) Get kill 6) Throw carepackage. 6.a) If you die before you throw it, you need to earn the next streak up (which may be 1 point away - so just YY and get a kill.) 7) ??? 8 Infinite ****!
repeat each time, including the yy. so it looks like this: earn killstreak -> new class -> kills - 1 before new streak, yy -> kill,throw -> 1 away from next streak, yy -> kill, throw repeat as nessecary