Is there a Doom WAD where demons are friendly?

[CacoMaster64]

That would be epic

[dmslr]

Mr. Friendly

[TheNoob_Gamer]

Three Is a Crowd, a recently-released megawad have map26 where the imp is your friend helping you past troublesome defenses.

There is also Arctic series and DSV3 War that features MBF bots.

[Aku]

I been working on a megawad caled labyrinth of the aku, the levels im currently working on for the next update feature custome enemies from realm 667.

 

I been incarporating friendly monsters such as a hell hound dog, female zombies, pyro succubus , time imps and a black baron, they are being icorporated in interesting ways to creat unique scenarios.