OOB 024 -- US Army -- M1A2 Abrams

[mr_clark]

thatguy96 said:
Were the crew supposedly injured in the resulting ammo explosion? For this to happen in the M1, a crewman would have to have been in the process of retrieving a round from the magazine. Otherwise they should be protected by a blast door and the compartment is designed to divert the explosion upward away from the crew.

Also take into account that for using the turret MGs the vehicle commander would need to open it's hatch. If there's enemy infantry nearby I guess it'Äs likely he would like to give additional firepower to the vehicle this way.
Now I'd say in the worst case the ammo cooking up through the release vents the fire could suffocate the whole crew by 'sucking up' the air from the turret compartment. (not to mention the serious internal burns from flaing air in the lungs...)