AS THE TITLE SAID
No, that’s dumb.
The entire point is not play the multiplayer stuff.
Edit: now that I think of it, one of the few who would benefit would be Swann since his Thors and Cyclones are not the ideal versions from multiplayer, though it’s up to debate which Thors would benefit him more.
Another issue is is Coop COs are designed to be streamlined. They purposely have only a fraction of the available units from Versus/Ladder to keep newbies from getting overwhelmed, but also to force that constraints on everyone (regardless of your skill level). folks would only use a fraction of the units from there anyways.
Last but least, most of the units are already there (though spread across several COs)
Don’t they have a mod for this?
Like Co-Op Allstars or something?
Perhaps. You’d have to search within the Custom tab.
I know they have Nexus Coop which is “the next level”, with a few fan made COs, and 1 or more extra Missions.
That’s what I am explaining, they have it as a Mod, the request from the original post.