@120s_gdls: The American m1a2 sep v4 was meant to be the latest upgrade to the m1a2 it had improved gunners sights with 3rd gen thermals, improved laser rangefinder (LRF), improved commander sights with 3rd gen FLIR and LRF, improved lethality allowing the fire control system (FCS) to communicate with the M1147 advanced multipurpose round, improved accuracy with meteorological sensors and to rapid fire a few improved diagnostics, thermal management system and laser warning system (LWS) it also would get the trophy active protection system (APS) and I believe a new ERA package but unfortunately it was canceled in favor of the M1E3 and now is at the armor and cavalry museum in Georgia #prototype #tank #armoredvehicle