Black Ops 3 Zombies Console Fix

You load a mod in Black Ops 3 and open the console with the "~" key. You enter, "/developer 2" and start the game only for the game to crash and take you back to the lobby with an error message. You set developer back to 0 via the console and the game loads fine.

You may have also got into the game but you constantly get error messages while playing with the mods you installed due to the game being in developer mode.

I have two fixes that I have been able to use to solve this issue.

Fix #1:

If you are loading a custom map with no mods loaded you can install the better console mod that will enable cheats in the console without having to type, "/developer 2" or install a mod menu from the Workshop as well.

Fix #2:

If you are trying to load a mod and join a map whether a custom map or the standard BO3 maps / Chronicles.

First: Get the console identifier name for the map you are trying to play.
Shadows of Evil - zm_zod
The Giant - zm_factory
Der Eisendrache - zm_castle
Zetsubou No Shima - zm_island
Gorod Krovi - zm_stalingrad
Revalations - zm_genesis
Nacht Der Untoten - zm_prototype
Verruckt - zm_asylum
Shi No Numa - zm_sumpf
Kino Der Toten - zm_theater
Shangri-La - zm_temple
Ascension - zm_cosmodrome
Moon - zm_moon
Origins - zm_tomb

Second: Open Steam > Library > Right-Click on Black Ops 3 > Properties > Launch Options

In Launch options put, "+set fs_game zm_mapname +devmap zm_mapname"
(Without the quotation marks)

Put the name of the map where it says "zm_mapname"

Third: Launch Black Ops 3

When the game loads it should load you into the map on launch. When the match starts, exit the match and return to the main menu.

While on the main screen go to Mods and load the mod you want.

Fourth: When the mod loads, go back into the map and console commands should be enabled and you can use the mod you wanted with the custom map or standard map and whatnot.

Just remove the launch options when you do not want to use it.

This should work most of the time, it has worked for me to load a mod and use the console without having errors appear constantly or crash.

If you have a better fix, I would like to hear about it but this is what I was able to find, no other guides really pointed out this solution.

Thank you for reading, hopefully it fixes this issue for you if this is something you have been experiencing.