HALO is one FPS that really did introduce many new gameplay elements. It offers all that is said below and the modifications already in development look to refine and improve the "HALO experience" even more!
Church takes place entirely indoors and has three levels: the ground floor, a balcony running all the way around the large central room and a cellar/basement. There is a flag room for each team, though these are not identical, since the map is not symmetrical. The map is small enough for 4 players, yet intricate enough to sustain a hectic 16 player game. The map stands out graphically as a result of pushing the Halo engine as far as it can go while still remaining playable. Specifically, it uses over 60 new custom high resolution textures, as well as extensively detailed bumpmapping, 16 custom cubemaps and entirely new dynamic specular light sources. You can find a promotional movie for the map here:
Wow thats halo, impressive.
can evry body see it when i play?