Some of the levels I've worked on in Crime Boss: Rockay City. The levels are made within a 40x40m area (tiles) and support entries from all directions as well as 360 combat. Multiple different missions can be played in each of these levels that have been scripted by other people such as Michal Bula, Metodej Motyl, Honza Breburda or Jan Sichman. I took part in making variants of these missions (that means loot and patrol placements, player starts, points of interest...)
Screenshots from UE editor, lighting only.