also i may be reading too much into this or perhaps getting carried away with this game being a test and i'm assuming a lot of outlandish things.
but bare with me for a second:
1. we assumed the covenant is like the mafia but in the D2 scene the covenant grunt was scared of something. could this mean a 3rd party evil faction? perhaps one that's not only targeting town but also targeting the mafia?
2. what if there isn't even a mafia? what if each night infection spreads and we have to find a solution to stopping it? let's say we have an alien life form that sucks life out of people. one of us started as an infected, at N1 he chooses a target for the alien to move. once the alien moves the initial host dies and the new host has to pick the next target and so on. basically in this scenario we'd have to anticipate who's the current infected and kill him thus killing the alien. (btw if this isn't what's going on here it might be a good idea for a new game

)
jak111, could you please tell us if this is like a regular mafia game with town and mafia?
“In the beginning God said, the four-dimensional divergence of an antisymmetric, second rank tensor equals zero, and there was light, and it was good. And on the seventh day he rested.”- Michio Kaku