Black Ops 3 CUSTOM ZOMBIES (pc) + main game * download without Steam *?

Fo
- in PlayStation
1

Accidentally came across a few gameplays from BO3 Custom Zombies on YouTube and would like to play them too.

I've already read about it here and there on the web, but unfortunately I can't figure it out. The ways seem very complicated.

It seems easier via Steam, but I don't have the main game for the PC and I don't want to buy it either (I already have it as a ps4 CD)

Can one of you explain a simple way to me, and maybe also the links to it?

I already found the custom maps on cabconmodding. Now the main game is still missing?

I would appreciate any helpful information.

bo

This is not legal without Steam, so nobody will help you with this.