Loots

Loots:
Loots basically are most drops and expendable items, such as medikits, SAS4 cred packs, strongboxes, crates of random grenades, turrets, and the newly introduced radioactive green medikits in the mission Meltdown.

Places to Find Them:
Most loots and drops are found either when you kill a zombie and get one(very rarely), or a hidden room with zombies and loots inside. All maps have drops and can be used to the player's potential, for instance: in the level Vaccine, immediately right and above the player's spawn point, there appears to be a stack of papers on the ground by a wall and can be shot at to reveal a hidden control room with a loot/drop inside it, as well as entering the door the the crashed Airplane in the airport.

Loots and drops can be extremely helpful when low on health and you find a medikit, or when you pick up several grenades to throw instead of buying them. All in all, loots and drops can be found by the clever player and used to your advantage.