I was playing TDM with some friends and this random dude we had was running his mouth the whole time about this "sweet" glitch he ran into with the Care crates. Apparently there's a way to call in a crate, get that killstreak and somehow get a second. The guy ended up turning 1 crate into a predator and a Pave Low.  
 
Has anyone else seen this one or was he just messing around with us?

unlimited care package glitch. something do with knifing when picking up weapon while holding care package marker. dont remeber the specifics, but you will get unlimited care package markers this way.

" unlimited care package glitch. something do with knifing when picking up weapon while holding care package marker. dont remeber the specifics, but you will get unlimited care package markers this way. "

This guy was looking for a mountable ledge to climb apparently that and double tapping the d-pad was the way to kick it off, all that and his screen name was something like banned console or something like it. 

It was patched a while ago though was it not? I remeber everyone bitching about it a few months ago. Around the same time of that stupid javelin glitch.
 
Maybe it could be that trick using One Man Army and Hard-line.
 
2 classes with One Man Army. One with Hard-line, the other without. Once you get a certain amount of kills with your hard-line and get your kill-streak, switch to the class that does not have hard-line and then get 1 more kill. Apparently you're supposed to get that kill-streak again, but i have not had any luck getting it to work.

Hard to tell, I didn't know if this was widespread or an isolated incident, from what you guys are saying it sounds like it was isolated.

Step 1: Equip carepackage.
 
Step 2: Press A to climb up ledge. When you're about to climb over, double tap the D-PAD. 
 
Step 3: ???
 
Step 4: Profit?

i don't think this glitch is patched because last night i was playing with a friend and there were like 10 different emergency airdrops. the person only had 30 kills, which requires 9 or 10 kills depends on if ur using hard-line.

I play with a care package-Predator-airdrop setup, and in a game yesterday I got a Pave Low with the care package and for some reason it counted and got me the other two kill streaks. Hasn't happened before or since.

Yet another? These glitches are just deliciously funny sometimes.