Collectible Weapons

Collectible Weapons is a feature seen in the singleplayer campaigns of Battlefield: Bad Company and Battlefield: Bad Company 2.

Battlefield: Bad Company
The collectible weapons feature is merely for show. Every time the player pick up a weapon that he/she has never used, a notice will pop-up announcing that the player has collected a new weapon. Every weapon in the game (except the "Find-all-five!" weapons) is available to be collected in singleplayer. Collectibles do not include gadgets.

Generally, many weapons can be found on weapon crates and will be marked by a white 'X' on the map, although these boxes have gadgets with them sometimes (depending on the mission). This is the strategy to eventually collect them all, as most weapons are never used by enemies and can be often found in random off-course areas.

Playstation 3 Trophies/Xbox 360 Achievements
You Found it You Keep it - Find 5 unique collectibles

Half Way Thru - Find half of all collectibles

Clean Sweep - Find all collectibles

Battlefield: Bad Company 2
The collectible weapons feature differs in Bad Company 2 from its prequel. It still works similarly, you pick up a new weapon and you get a new collectible, but all the collectibles can then be accessed through supply drops. Collectibles also include weapons with different attachments, so the player can collect the same weapon twice, but with different optics, for example.

Only a select few of weapons are available in singleplayer and the collectibles now include certain of the "Find-all-five!" weapons of Bad Company, these being the M60, F2000, Type 88 Sniper Rifle and the USAS-12. The M2CG is also now a collectible, previously being classed as a gadget.

Playstation 3 Trophies/ Xbox 360 Achievements
New Shiny Gun - Campaign: find 5 collectible weapons

Guns, Guns, Guns! - Campaign: find 15 collectible weapons