Battle Pickup

Introduced in Battlefield 4, a Battle Pickup is a special firearm located at a certain location within a map, differing from the weapons normally chosen by a player depending on their kit.

Battlefield 3
The Aftermath expansion pack for Battlefield 3 introduced Scavenger mode, where players equipped only with handguns and grenades had to find more powerful weapons—chosen from a preset pool of infantry primary weapons—scattered around the battle area. Although not called "Battle Pickups", these would lay a foundation for including weapons that are not part of the normal weapon pool.

Battlefield 4
Battle Pickups are introduced in Battlefield 4. These are weapons that DICE wished to include in the game, but could not suitably balance for multiplayer gameplay. As such, only one of each kind is available to all players, and must be picked up from a gun case located somewhere on the map.

So far, the following weapons have been confirmed as Battle Pickups:
 * M32 MGL—six-shot grenade launcher
 * M82A3 MID—.50 caliber sniper rifle capable of one-hit kills
 * USAS-12—fully automatic shotgun

Battle Pickups come with a limited supply of ammunition that cannot be replenished from ammo boxes.

In-game, they are marked with a white gun icon via 3D spotting (minimap and first-person view).