This is the situation.
6 characters in the haven are going to have to fight the blackhearts from the core rulebook. (30 people strong.)
The haven was unable to recruit help from an allied faction due to failed manipulation rolls and even a mess up on a manipulation roll. (The allied faction had weapons and med gear but were scientists. So their first inclination was not to fight.)
So it's essentially 6 vs. 30. So i was thinking this is perfect for the brawl rules. Also, they may be able to separate some of the blackhearts or find heavy cover to keep themselves alive.
So my question is, using rules as written, is there anything other than brawl rules to apply?
Side question, how would you prepare as the game master to run this encounter as it seems the haven is doomed but is forced to fight? (I know pc's are likely to die at anybtime in this game, but want them to have at least a small chance. )
Thank you in advance for your help.