These are other weapons used in GRFS, these are brought to you by http://www.imfdb.org/wiki/Main_Page
Other Weapons
This section lists the guns seen in the first live-action trailer.
Barrett M107
Fired by a Ghost Recon operative codenamed Pepper to kill Ivan Illitch Kerenski in the trailer. It might be some futuristic version of the Barrett M107 because the magazine looks too small.
Barrett M107 - .50 BMG
Pepper with the Barrett.
Pepper prepares to fire the M107.
Close-up of the trigger.
View through the hi-tech scope of the M107.
Heckler & Koch MP5A2
The operatives at the Russian Special Forces headquarters have MP5A2s.
Heckler & Koch MP5A4 - 9x19mm
Mossberg 500 Cruiser
A Mossberg 500 Cruiser can be seen holstered on the back of a Ghost Recon Operative codenamed Kozak in the first live-action trailer.
Mossberg 500 Cruiser - 12 Gauge