This is the prep I sketched out for my first Mouse Guard game:
It was such a success with the group that I thought I’d share it. It introduces moles into the Mouse Guard mythos as having a society kept secret from all other creatures (some of the moles even believe they were the creators of the Darkheather tunnel network). The group encounters a hidden colony of them after being swept away by a flash flood and must rely on the charity of an old mole adventurer who is one of the few moles that speak mouse and know of the guard.
I planned it to slowly introduce the rules by having two short GM and player turns, giving the group a chance to get comfortable by degrees. I also use a system of bullet points for my prep - like a sushi box of events I can add or leave out depending on how the game is running.
Apologies for taking liberties with the material - at least I didn’t put humans or cats in it