We all know if Pereh is Tank Destroyer type. But the problem here is the main gun that unable to use. The big problem happens if enemy tank began to come closer to the Pereh tank that's mean the pereh tank can't do much to destroy it if the enemy tank flank it at close range because ATM launcher had limited range to launch their rockets. So my idea is to make Pereh main 105mm gun can be used to fight against incoming enemy tanks (at the close range).
Basically Pereh ATM launcher is not that big. Maybe we need to reduce the ATM launcher platform size to decrease the chance of being spotted by enemy.