Short review: -Solid shooting and gameplay that actually benefits from playing on higher difficulty (enemies become damage sponges on lower difficulties, and accuracy is messed with for both parties) -Amazing lighting and AI. Often invites just sitting back and watching things play out. -Active and varied mod community. AMK, ZoA, OGSE, Doom's Mod Merge and many, many others all show new sides to the Zone. Complete mod, while looking good, cheapens the whole Zone experience in the long run.