Co-operative maps

I recently got a new pc so still getting all my FAF stuff back. I'm sure I had more co-op maps that I had downloaded from the vault but cannot seem to find them no matter what I search?

Also, didn't there used to be a co-op section on the forum or am I losing the plot (always a >76% chance)..

Most coop maps are campaign or have "survival" in the name.

Coop section was on the old forums and it was pretty inactive