How would the Firefly be any different from M36? Mechanics would be identical except it's slightly tougher. Plus you'd have to bring the Brits back. If they are back as a faction it makes sense for them to get Firefly, otherwise it doesn't really.
And you're still solving for the same problem -- a beefier long-range AT tank unit.
firefly was just a slightly modified M4 made to carry a 17 punder gun. M36 was a purpose(as in the chassis and up) built Tank destroyer. If people a firely like vehicle for USF then your answer would be the M4A8(90) which was a prototype sherman fitted with a pershing 90mm gun turret or a M36B1 which was a regular M36 turret fitted to a sherman in order to meet demand.
Pershing, in terms of performance, should be somewhere between Panther and Tiger.
It has better accuracy on move (gyro stabilizer) and unlike to late game german tanks, electrical turret.
Man gun was able to penetrate front armor of Panther which is documented.
Let's keep in mind, Pershing is not heavy tank. It's 3tons lighter than Panther.
Sign this argument again...... TANK CLASSIFICATION IS BASED ON INTENDED ROLE AND UTILIZATION AND NOT BY WEIGHT
The IS-2 weighed around the same as a Panther also I guess that was a medium tank too? Pershing were finally deployed to Europe after the Bulge in order to augment American Armor with more firepower and go toe toe with Tigers and Panthers it is a heavy tank.
Why always the pershing?? I feel it is just because vcoh had it! As far as I know the pershing barely if ever saw any action. So why do people always want it? In a different pershing thread someone came up with the sherman jumbo and imo its the better altenative to the pershing! It fits the usf playstyle and design more than the pershing. It would be a damage sponge for your jacksons/m10s/atgs and deal a good amount of damage to infantry in return. What do you think?
This exact argument could be made against a number of other units yet no one argues those so lets please not go there.
Because you don't cure ebola(heavy tank meta) by infesting another patients(USF in this case).
You isolate the sick ones and cure them.
Thats why heavies should be given distinct, easy to exploit by mediums weakness, not given to everyone for no particular reason.
This is ultimately what it comes down to people. Lets not recreate the same issue with the soviets! Only way I would ever get behind a Pershing is if we knew for a fact Relic had zero plans for improving USF late game and call in reliance was the only option, but it should always remain the final option.