I have a made a map for black ops 3.
Now I want to upload it to the workshop.
But I have no idea how.
Can someone please explain how, or give me a link to a tutorial?

It´s easy, when you are in the mod tools launcher, go to edit, options, and select all languages you want your map to be compatible, then, compile and link your map, after that, is just (with your map selected) click in the button publish (a cloud with a blue arrow), set what you want of description, public name, category, and post it, hope it helps. 

Thanks you!
I just got an error when I tried to run the map in the modlauncher after builing it.
It said that I was missing a lot of stuff MP and ZM stuff, like the perks and specialist weapons.

Could you send me a pirnt of the error? Or Ctrl+C and Ctrl+V the error?