During development we frequently tweak the color balances in the levels to achieve the look and feel that we're shooting for. What you're seeing in these two videos are two completely different visual styles for the level that were tried. That's why the older 360 shot has a distinct blueish tint, while the more recent PS3 shot shows the more appropriate middle eastern feeling lighting.
You can also some differences in the geometry in the two shots. Broken walls, windows, etc... Every level goes through at least one "detail pass". The designers will rough in geometry and do a certain level of detail, but it's the environment artists that really make each level shine. The version of the level shown in the PS3 shot has been through one or two more detail passes than the one shown in the 360 shot. That said, all levels (single player and multi) use identical geometry and textures across all platforms. If nothing else, the shots show an interesting look at the evolution of a level.
