yeah thats right you need to get 5 kills to get care package but u can not use anything below to build on you kill streak it makes the game more interesting i think,
hardline pro is excellent, you can change anything that drops in a crate like sam turret , carepackage, and turret gun all you do is run to it and instead of holding "X" (xbox) you double tap it to change the contents, you can get anything the best one has to be when i changed ammo to dogs