Just so we're clear......... The American M4 is nothing like the Firefly. Two almost completely different medium tanks....... From armor protection, power/weight ratio, ordinance, suspension, engine, and so on.
My question is besides the rockets what are we getting that the Firefly doesnt do? Im going to take a guess and say they are going to raise the perk on the FireFly...
75mm, not 76............ Right? M4a3, 75mm
EDIT........ 76mm it is.................