War Thunder has just released a devblog for the upcoming Battle Pass vehicle: The M6A2E1 Heavy Tank.
M6A2E1 will be the first paper tank available for the US Ground Forces Tech Tree as an event vehicle. While there were two existing M6A2E1 (M6A2E1-1 & M6A2E1-2), this tank won’t be either of them. It’s caused by the additional slab of rolled armor in front of the M6A2’s main hull. The armor setup was a part of the uparmoring project to allow the deployment of M6A2E1 to the Europe Theater of Operation by increasing the effectiveness of frontal armor by up to 7.5″ (190.5 mm). However, it was rejected, simply because of how nigh impractical it would be. And so, the two aforementioned pilot vehicles were never welded with the addon armor, and retained their original hull armor thickness of 4″ (101.6 mm).