You're giving a tank that barely has enough crew space more armor. and counter measures. I don't know the reason for Pak armies decision for this but it must be economical. In my opinon keeping tanks light is important but have protection is even more of a priority. Either the tank lacks internal space for more machines or having armour is cheaper expeically with the taliban being armed with RPG-7s. The 1500 hp engine if German would cost as much as the tank! Leaves me wondering.