NOTE: This page is for an upcoming video game; all information and screenshots are from official trailers. More information and images will be provided once the game is released.
Pistols
Possibly Beretta M9
In the beginning of the new "Fault Line Episode 1" video, a Marine who is sitting in front of the player has a pistol holstered to his vest. This could be the standard issue Beretta M9 pistol used by the U.S. Marine Corps today.
Assault Rifles
M16A4 Rifle
The M16A4 rifle is briefly shown during gameplay footage. For some reason it has no iron sights or even optic sights, but this could be probably because of the alpha stages of the game.
M4A1 Carbine
The M4A1 carbine is commonly seen in the teaser which is also in the hand of the main character, fitted with ACOG and M68 Aimpoint red dot scopes and Surefire Universal weaponlights.
Machine Guns
M240B Machine Gun
The M240B appears in the hands of U.S. Marines, fitted with an optional EOTech red dot sight.