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INFO
First of all, , start the game and don't go into the menu, stay in the "Press enter to start" screen, then you open the trainer.
And press numb ( ' 0 ' ) .
Go back to your game and if you did it right, offline zombies should start.
When the game loads, , and you are good to go, go back to your game, have fun.
USE IT AT YOU'R OWN RISK
click download and thanks it's free be thankful