As one of the Teachers in the MvM event I'm disappointed you (Eye) didn't just sign up for the course and possibly start a discussion by asking intelligent questions during the Q&A section of the class..
Also the lesson plan I wrote for the class can be read back here: http://pastebin.com/zbrhb8zv
If this information I posted is wrong I'd like to hear it, but I don't think there is much (if at all anything) wrong with what was used.
EyeI do play MvM a lot too, more than PvP, currently in progress making a MvM map, tracking down bugs with the small community i am part of that plague the Gamemode.
This is exactly the reason NOT to play this gamemode, it is buggy as fuck, everyone and even Valve knows. Hunting down bugs won't complete missions, that's what bootcamp is for, dick around and see what you can find broken with the game.