As promised, here are the interior shots of the MWP. There are several aspects from the heavy armor on the front to the maintenance bay, the medical and environmental control bay as well as the C3 section.
Note also the underside access for the infantry unit to egress the vehicle even under heavy fire.
Quoting Daniel Hornsby
Brings to mind the Clone turbo tank from star wars with the wheel system and the moving fortress appearance, like the insides but is there any crew sleeping quarters onboard?
No sleeping quarters as the crew is rotated out every 10 hours. It has been noted that some commanders have let people sleep in the medbay, but that is rumor and if anyone were caught doing that, it would mean disciplinary action.