Don't talk about what you don't know.
Here are your options without me:
you go to Mourne, Marcus kills you - the mafia loses
you shoot Marcus, he shoots you and kills you because he goes first, and regardless of Mourne's move - the mafia loses
Marcus, for some reason, shoots Mourne, you shoot Marcus, and if he has no protection, you win.
In general, your chances with Marcus are laughable, with me there are many more options, but you're just afraid of me and therefore you're ready to throw the game for the team. That's really LOL.