Note: This version of the mod works with the vanilla version of the game without the need of Game_Mod or Plutonium to load it.
 

How to install:

Download the zip file from the Github releases section, then extract and copy the .ff files to the "steamapps\common\Call of Duty Black Ops\zone\Common" folder.
 

How to uninstall:

Verify the integrity of game files for Call of Duty: Black Ops and Call of Duty: Black Ops - Multiplayer.
 

Known issues:

The Mule Kick perk is bugged and doesn't work properly.
 

Optional:

Compile from source using Call of Duty: Black Ops - Mod Tools (BETA).

How to install:

Download the relevant zip file from the Github repo after navigating to the releases section, then if using Game_Mod extract and copy "Black Ops 1 Zombies EE Patches" to the "steamapps\common\Call of Duty Black Ops\mods" folder (if the mods folder doesn't exist then make one).
If using Plutonium, extract and copy "Black Ops 1 Zombies EE Patches" to the "%localappdata%\Plutonium\storage\t5\mods" folder (if the mods folder doesn't exist then make one).
 

How to uninstall:

Navigate to "steamapps\common\Call of Duty Black Ops\mods" if using Game_Mod or "%localappdata%\Plutonium\storage\t5\mods" if using Plutonium and delete the "Black Ops 1 Zombies EE Patches" folder.
 

Known issues:

No Steam achievements will be unlocked when using Plutonium due to the way Plutonium currently interacts with Steam and the game files.
 

General Changes:

Added a EE speedrun timer that activates when the first steps of the main Easter eggs are activated and stops when the last steps of the main Easter eggs are completed.
 

Ascension Map EE Changes:

The Casimir Mechanism Easter egg now works with any amount of players.
 
The buttons step now gives players 100 seconds to press all 4 buttons when not in a 4 player game.
 
The lunar lander step is solo-able (the LUNA letters are at their original positions in coop) after the pressure plate step (in order: ride the lander near the Revive perk to grab the letter L, ride the lander near the Stamin-Up perk to grab the letter U, ride the lander near the Speed-Cola perk to grab the letter N and ride the lander near the PhD perk to grab the letter A).
 
The freeing Gersh step only requires the upgraded Zeus Cannon, upgraded Ray Gun and Gersh Device when playing solo.
 

Call of the Dead Map EE Changes:

The co-op version of the Ensemble Cast Easter egg now works in solo.
 
You no longer have to knife the frozen vodka bottle, you can shoot at the ice encased around it to dislodge it whilst standing below it to catch it in solo, when in co-op the ice encased around the vodka bottle still needs to be knifed.
 

Shangri-La Map EE Changes:

The Time Travel Will Tell Easter egg now works with any amount of players.
 
In solo mode the tile matching step now gives the player 100 seconds to match each tile before they reset (standing on the tile activates the timer and symbol so that you can match tiles, crouching on the tile clears the symbol and stops the timer so that you can memorise which symbols are on what tiles).
 
Time in eclipse mode has been increased to 20 minutes during the tile matching step.
 
Player 1 always spawns as Richtofen.
 

Moon Map EE Changes:

The Richtofen's Grand Scheme Easter egg now works with any amount of players.
 
Still requires the completion of previous Easter eggs.
 
Player 1 always spawns as Richtofen