Here's a set of configs to let you play MVM on your scrim servers -- just drop these files in tf/cfg on your server, load one of the maps, and you're good to go. Use the "call vote" function from the menu to select the harder difficulties.

https://dl.dropbox.com/u/29208222/mvm.zip

Not sure if not having 32 slots limits the bot count... it certainly looked like more than 10 bots were coming at once on my 16 slot.