Will you add a balanced assault rifle? It will be a rifle with slightly better accuracy and slightly better recoil than the heavy assault rifle and a higher rate of fire (like the carbine rifle in reduntant guns), but also with a more expensive craft, slightly less damage, and will look like the AEK 971 with 7.62/39 magazine(like in heavy assault rifle)
I made a concept for this rifle on heavy assault rifle base

Interesting idea -- probably would go in Redundant Guns though to avoid too much overlap. I'll probably give the magazine a texture similar to the 5.45mm AK mags, but maintain the model's geometry - would help differentiate it more from the normal Heavy AR.