This is the P2399/78C and P2399/78AR \"Scorcher\", used by infantry of the Skorpshjuze Member States as their primary Assault Rifle, Light Carbine, and Designated Marksman Rifle. It holds a 24 Round Clip and can be put on Semi-Automatic or Fully Automatic.
Here is the Carbine (carbine is noted by the shorter barrel and adjustable stock), with three attachments (Marksman Scope, Energy Bayonet, and Silencer)
Here is the Assault Rifle version, (noted by the stock; the barrel is to be lengthened later), without any attachments.
Please tell me how they look currently, but remember all textures you may see are not complete in the least (the models aren't even UV mapped, except the bullet):
To add/fix:
-Laser Sight
-Grenade Launcher
-Flashlight
-Optical Scope
-Fix AR barrel
-Of course texture/UV map
Models ironically look better in the game itself, due to Per-Pixel Lighting in UE3.