Duke Nukem Forever
I was employed as an Environment Artist / World Builder for the multiplayer component of Duke Nukem Forever. Below are some screenshots of the 6 levels that myself and another world builder at Piranha Games were responsible for.
I have included some picture-in-picture images for my non-industry friends who don't really know what it is that I do all day.
In addition to my world/environment art tasks, I was also responsible for any multiplayer related UI design (FE & Hud), heavy & wide ranging optimization work (engine was built long before the time of console online multiplayer), and of course many strenuous hours of excessively fun playtesting.