I was one of three level artist on the campaign.
Together with the art director and in collaboration with designers I created several of the campaign maps/areas. Including heightmaps, object placement, shaders, object creation, base layouts, etc
Towards the end of the project I created and lit locations for trailers/videos
Most trailers towards the end was spoofs or parodies of other games, like the mad world trailer for Gears of War, Metal Gear Solid etc.