The diner s roof is accessible using the roof hatch a bus part found in the tranzit map and is where the galvaknuckles can be bought. Use the fan to get in. Take it back to the bus and get it into the bus.
Mega Blocks Introduces The Call Of Duty Collector Construction Sets The Shambling Undead March Ceaselessly About Call Of Duty Zombies Call Of Duty Mega Bloks