Sherman Calliope

The Sherman Calliope is a special Sherman model that uses a roof mounted rocket artillery array. To use it you need to spend some munitions to fire,then later its free to use but its a long cool down so use it properly. Its effective against enemy armor and foot soldiers it still uses its 75mm M3 gun and hull mounted 30. cal MG and has marginal protection from heavier tanks but the rocket artillery array will make short work of them.