In most mobs on Gorkamorka, the nob and spanners would just curl up to sleep in their beloved vehicles, but other members of the mob probably get booted out once the comfy spots are taken. I'd imagine that a few industrious grots could nick a few sheets of metal and build themselves a nice hovel, while the yoofs in the gang could also nick a few sheets of metal...and make the grots build them a nice hovel.
I wanted to sort of give the impression not just that this section of wall contained the mob's sleeping quarters, but that the walls were probably honeycombed with little nooks and crannies that the mobsters had either purposefully left while constructing the fort, or hollowed out at some point.
Unsurprisingly, I used a rather eclectic range of materials to build this little shanty town. There's lots of plasticard, some bits of random toys, a bit of green stuff, and some tiny cast details. Also plenty of bolts and rivets.
Overall, it certainly doesn't look like the greatest of living conditions out in the deserts of Gorkamorka, but I have some friends in San Francisco who've definitely paid to rent worse places.