Will add it's the least visually appealing map but it has a claustrophobic, tense feel to it. I found a battery which I put into a machine, other machine next to it needed "coolant", we didn't have any of that. You will need to search destroyed UESC for security clearances. I didn't see any new enemy types...
UESC will flank and rush down much more than other maps, at one point we were in a small room with multiple entrances, constant stream of UESC rushing up stairs, I'd pop out from around the corner with the shotty *bang bang*, another robot bites the dust, other two dudes were guarding windows/catwalk, pretty intense.