Stat tracking: The Zombie Realism Mod 3.0 keeps track of just about every stat you can think of allowing you to know exactly how you are doing at all times. Realism mode has no health regeneration, and plays more like an old fashionate shooter like Doom or Quake.
Easy, Normal, Hard, Insane and Realism difficulty ( last two are unlocked by prestiging ). Supply drops ( going from just points to OP special weapons, sentry guns and guard dogs ) The mod features about 50 guns, and each weapon has attachments for you to unlock by getting kills with that weapon. You can fully customize the game settings from easy to insane, and turn special features on/off to play the game the way you want to! Choose between 5 different character classes (Medic, Assault, Tank, Breacher & Demolitionist), pick a starting weapon and unlock achievements to earn ways to customize your weapon and or character!