Confused how to get Top of the Heap medal (10 pve MVP)

I’ve been MVP multiple times in escape but the medal hasn’t progressed. How do you progress on this one?

It counts Horde wave MVPs, presumably because it uses the MVP ribbon to track the progress and for whatever reason Escape does not appear to award this ribbon.

Also, dummy advice that may seem redundant but the game doesn’t appear to award MVPs when playing solo or with bots(of course, no bots in Escape).