I did this months ago as a school level design project. I modelled some of the models like the signboard, travelator, lift, lights and a few others too. Also, i experimented with the use of many abstract textures in the level.
This level was designed to be compact and is suitable for FPS deathmatch. Many shelves are placed in the level to restrict/obstruct the player’s view so one would feel tense with each corner he turns as you never know if there is an enemy there.
Check out the level walk-through in the video below: