SD:M4A3E2 Jumbo

 is a United States Tank unit. It is the most heavily armoured tank fielded by the Allies and is in fact the most heavily armoured tank in the game, boasting more side and rear armour than the vaunted Königstiger. The US 3rd armored is the only wielder of this impregnable tank, with one Jumbo available in phase B and two packs of two Jumbos each available in phase C. It is equipped with a standard 75mm gun that can only deal with vehicles and the earlier German medium tanks.

Strategy
One of the most devastating tools in the American arsenal and definitely a worthy investment, Jumbo is best described as a bruiser, able to take punishment and keep on coming. Its frontal armor is pretty much impregnable to every Nazi tank and anti-tank gun, save for close-range HEAT attacks and long range 8,8 cm guns. Its armor is better, in fact, than the Königstiger (P) and Königstiger (H). On top of that, it has better side and rear armor than either (33% better on the sides and 10% more in the rear) and speed (33% faster off-road, though only ~8% while using them). All the usual considerations for Tiger IIs apply (save for the absence of a powerful gun). Frontal unsupported charges against enemy lines can, should and will result in a burning jumbo wreckage. While it cannot be reliably penetrated from the front except by the Pak 43 and its mounted variants, it can still be panicked by enemy aircraft or repeated anti-tank gun fire.

The second wrinkle is the fact that the Jumbo mounts only a late 75mm tank gun, rather than the much more powerful 76mm or the 17-pounder, meaning it's essentially a meat-shield for lighter, but better armed vehicles. It works quite well heading thrusts and helping other units spot targets by absorbing incoming fire. This was in fact its historical role in the Northwest Europe campaign: leading tank columns and soaking up hits. The jumbo should form the vanguard of an armoured thrust, supported by units that do have the firepower needed to punch through heavy German armour.