If you have a notable ballistics observation to consider improving based on actual ballistics I made this thread to list them. To start I'm posting the major imbalance of P90 vs Vector 45 with supporting ballistic facts.

A Vector shooting .45 caliber shouldn't have higher accuracy and range than a P90 shooting hyper velocity 5.7mm rifled ammunition. .45 900-1350 fps and 5.7mm is hyper velocity 2400fps-2600fps. The P90 easily should outclass in range and accuracy all smg especially a Vector shooting .45 P90 has no recoil and can shoot a star out of paper target. I own a P90 and very familiar with ammunition differences. GRW picks winners not based on reality. It drives me crazy.