[raketenjagdpanzer]

Looking a little closer, it's an interesting compartment. Looks like about 50" of vertical space on the forward bulkhead - but you run out of room before you get to the actual bulkhead anyway with the gun racks. Behind the four M16A2s is what I'd wager is a satchel full of magazines. To the left is a light medkit, likely for the bumps and bruises the passengers are going to get going cross country in there!

I'm not sure what the large cylindrical container strapped to the bulkhead is. Any guesses?

Good stowage area under the seats, too. You could stick a couple of Javelin rounds under there and the CLU under the other seat, or M136s, LAWs, MREs, etc. etc. To the right there appear to be racks behind the heads of those passengers, but, obviously we can't tell what they are.

Forward of those is what looks like a ventilation fan, but I don't know if that's supposed to be an NBC air scrubber or just a recirculation fan. In the middle of the roof there's what looks like an armored light fixture AKA "this is why we wear our covers inside the track, boys".

I don't see any provision for an intercom or phone system, I'd guess a full production vehicle would just about have to have one. At four soldiers wide, side by side in full kit and/or MOPP gear I'm thinking the overall structure is too shallow for an immobilized CASEVAC, likewise laying crossways, but ambulatory wounded could be moved out obviously. Can't tell if there's FPs on the rear door/ramp but, given the shallow depth, likely not. I can't imagine trying to jam a 40" rifle thru a firing port then spilling hot brass into a space that's basically 1/3rd the size of the interior of my Honda Civic, but soldiers do stuff if it means surviving...

I know the batteries/generator system must be somewhere else in the tank; maybe in the space between the fighting compartment/turret of the tank and the passenger space?