Assault Rifles are fully automatic firearms that are widely used by military and paramilitary forces across the globe, they come in many shapes and sizes from numerous manufactures. Each one is unique and very few actually have stats that are similar to each other, they are useful in many situations (especially after customization) but do not provide the specialized capabilities of other weapons. Nevertheless you should always consider carrying one of these under most situations.
The Heckler & Koch G36C is portrayed as the HK36. It is the standard issue rifle for all SSC troops. At its Base, the HK36 has medium damage, medium accuracy, and low Aggro.
The Colt M4A1 is portrayed in this game as the S-System. At its Base, the S-System has medium damage, medium accuracy, and low Aggro. In the training level, the S-System has to be an M16, because the M4A1 wasn't introduced until 1994.
The infamous AK47 is portrayed in game under the same name. At its Base, the AK47 has high damage, medium accuracy, and medium Aggro.
The Steyr AUG was portrayed in game as the AUG. At its Base, the AUG has high damage, high accuracy, and medium Aggro.
The FAMAS F2 is portrayed in this game as the Felin-2C. At its Base, the Felin-2C has high damage, high accuracy, and medium Aggro.