Trying to make enemies fight each other was a great mechanic that helped in many occasions.
It was a masterpiece in every aspects, great graphics, great gameplay, great controls (the best for a console FPS until Halo and the dual stick configuration) great level design, great soundtrack, great replayability, a perfect game.
Yes it's a total shame that we never got Exhumed 2 and Lobotomy disappeared after Quake.

