Since you have optional attachments on the weapons, could you have optional weapon conversions too? I'd love to use the 9mm conversion of M4 (which is somewhat popular amongst law enforcement people if I remember correctly)...I'm not sure if the other rifles have 9mm (or similiar SMG cartridge) conversions, but I'd love to see the Colt M4 9mm in INF in addition to the regular Colt M4.
It has several advantages when compared to the 5.56 mm M4:
-Isn't as loud
-Is easier to silence
-the 9mm round doesn't overpenetrate in HRT situations
-Not as heavy (tho not that much lighter either)
And since you already are planning to include the regular M4, you wouldn't need a completely new model, just change the clip on the M4 model.
It has several advantages when compared to the 5.56 mm M4:
-Isn't as loud
-Is easier to silence
-the 9mm round doesn't overpenetrate in HRT situations
-Not as heavy (tho not that much lighter either)
And since you already are planning to include the regular M4, you wouldn't need a completely new model, just change the clip on the M4 model.