Full Walkthrough on Hard with all Collectible Weapons and M-Com Station Locations for Bad Company 2.
If you just want to see cut up videos of JUST the Collectibles and M-Com Stations then view our Short and Sweet Guide HERE.

COLD WAR

COLLECTIBLE #1: XM8 S – This is the weapon you start the game with. As soon as you take control it will pop.
COLLECTIBLE #2 & #3: AN 94-R & TOZ-194 – These two weapons are the base weapons used throughout the game by low level enemies. You can grab them both right from the first Russian patrol.
COLLECTIBLE #4: T88 LMG – This is the standard machine gun. You can first get this off the beret wearing enemies in the first village.