Map 2 of a 4 map campaign. E1M2 takes it up notch from E1M1 being slightly longer, more difficult and it feels larger. The map is a key / switch hunt map, but does a fine job utilizing areas and re-utilizing areas. There is a nifty hazardous area that adds a nice touch to the facility. The same great touch of mixing classic with modern textures is present in this map. Looks great. Plays great.