DOOM ZERO ver. 2.2 (Old version) file

Some of the changes:

ver.2.2
-Further refined the player's weapon animations and made the fist punching more aggressive
-Added berserk packs in maps that didn't have them
-Turned blue armor room into a secret in maps 01 and 32
-Added 2 simple puzzles in map01 to help teach players the role of the face switches and its mechanics
-Made 2nd switch "puzzle" less confusing in map02
-Silenced door sound effect when face switch is toggled on in map09
-Removed lights in center of map09 to prevent monsters and player from occasionally getting stuck
-Added floor pattern in the square room of map12 to help players spot an alternative way to open the door
-Made certain floors red to make it a little easier to spot platforms that the player can run on in map13
-Made locked doors' colours more noticeable in map14
-Widened corridors during platforming sections to help it not be tedious near the end of Map15
-Made it easier for players to notice the best way to solve the exploding barrel puzzle in map16
-Moved megasphere near slime pit, added rocket launcher to where the megasphere used to be in Map23
-Tweaked a platform in large cave to prevent players from cheesing the plasma gun secret in Map23
-Swapped out rocket launcher and super shotgun near slime pit with plasmagun and plasma ammo in Map23
-2 secrets tease the player more by being more visible near the large slime room in map23
-Changed the 3 story lift near the large slime room to prevent the player from waiting too long in map23
-Cacodemons are easier to see in the large slime room when viewing through both switch cages in map23
-Overhauled the order in which the player can access rooms in map25 to help find the exit more easily.
-Replaced radiation suit with a berserk pack in map26
-Tweaked the central room's floor to make it easier to telefrag the cyberdemon in map26
-Added more enemies, mostly during times when player has low health to keep players on edge in map27
-turned secret wall near the end of map26 into a lift so that the player can access the other secret quicker
-moved the keys and locked bar switches in map28 to help communicate to the player what they do.
-the shrine/temple in map30 now actually looks like a shrine/temple
-Added more plasma ammo in final archvile room in map31

ver.2.1
-Refined the face puzzles in Map03
-Fixed a glitch where a rocket will disappear in a wall of Map04
-Added more rockets in Map31
-Added a secret and a floating island decoration in map23
-Removed issue where barons in a cave can attack the player before going into the cave in Map23
-removed a damaging floor near exit in Map25

ver.2.0
-Added a new room in maps 01 and 32.
-Changed the door mechanism in map02 for more consistency.
-Modified the lava puzzle in map05.
-Inescapable pit removed in final room of map08.
-made platforms slightly easier to leap from and to in map09.
-moved berserk pack to before the final room in map10.
-Replaced many of the Revenants with Hell Knights and added more rocket pickups in map14.
-widened demon witch doors and added text on floor to help with platforming in Map21.
-made skull switch a little more visible in the raise bridge room in map22.
-tweaked the secrets in maps 23, 25 and 30.
-Added more detail to map24.
-Fixed hall of mirrors glitch in final room of map28
-Overhauled the player's weapons animation, and certain monsters attacks.
-Synced up the explosion sound to the animation of the death explosion of the Spider Mastermind.
-Coop sound effects are back to normal (ie: item respawn sound effect).
-Added/replaced all the various elements that was unique to the officially licensed version, including a 4:3
version of all artwork. The 16:9 versions will get a release sometime in the future.