I'm interested :D Might I make some suggestions to the weapons? As for Shotguns and Assault Rifles anyway. The M27 IAR is a fully automatic rifle only slightly bigger than the M4 with a dramatic increase in accuracy and rate of fire. The m1014 benelli is a semi automatic 12 gauge shotgun with an 8+1 shell capacity (the plus one being a full tube and one in the chamber) It has a telescoping buttstock that can be extended for accurate shoulder fire or collapsed for easier hip firing.

Edit: The m27 if equipped with the appropriate scope can also act as a small caliber sniper rifle (5.556, same as the M4 and M16) because of its accuracy. Its a diverse weapon indeed. I know this because I use it ;)