I got an answer from Anton (sort of) regarding news

[dkwookie]

Originally Posted by STINGERSIX78

they used a modified MG42... ^^

As winny said the pulse rifle is a Thompson. The smart gun vasquez and drake use is an mg42. They picked the mg42 for due to the huge muzzle flash. I believe they increased the flash further by using wooden blanks which basically explode out of the muzzle.
Also the APC was built from an aircraft hauler. Basically one of those tugs that drag 747s