For those that don’t know, Atomic is fond of pointing out the fact that every real-world weapon in Breach has its own physics baked into the engine to provide combat authenticity.  Each weapon is a true replica of what is used every day on the battlefield by both the US and the opposition, including many weapons not included in other shooters, which have been licensed by their manufacturers for use in Breach. These weapons can also be outfitted with attachments such as scopes and suppresors.  With each caliber firing from each weapon differently, and destroying cover as it would in real life, Atomic states that survival depends on knowing the right weapon to use in every situation.
So, here is the full weapons list from the game:

M4A1
HK 416
ACR
M60
M240
IAR
ACR

TPG-1
M107-A
M1014
MP5
Saiga – 12
AK-103   

SEAL Recon Rifle
MK 14 EBR
HK USP .45
M67 Frag Grenade
M18 Smoke Grenade
Breach Charge
M203

Like what you see? Well, head over to the game’s official website and get more detailed descriptions on the weapons to be featured in the game, which is currently slated to hit both the PC and Xbox 360 via digital download in early 2011.