As of lately, the ever annoying care package glitch has been fixed and there are no new hacks to report at this time. None that I have ran into at least... post up if you find something you'd like to share with others.
Yeah i hated that glitch... only when it was the other team getting them though haha! Ive only ever seen it done once from my team and i assume you are referring to this one... Hold the care package flare and while jumping either onto or slipping off a wall or object use it. Assuming its not ammo you will have infinite care packages.. this the one?