The M1 Abrams series of MBTs is renowned for its exceptional crew survivability. They contain a number of "blowout panels" that prevent fuel or ammunition cookoffs from affecting the fighting crew, as well as a variety of automatic and manual fire extinguishers. While this can do little for a crewman in the way of an APFSDS dart, it can prevent the others from dying gruesome and unnecessary deaths.
EFFECT:
This vehicle possesses +1 Critical Hit Resistance, meaning to land a Critical Hit, the enemy must land one point higher during the Armour Saving Throw.
Additionally, this vehicle is immune to ammunition cookoff as a result of an enemy landing a Critical Hit.