4Game

In my local playgroup, the stronger players have figured out that when they're impostors, they can be super effective by traveling together as a team – getting double kills, making people feel safe (as they think if one is an impostor, the other will be a potential witness if they're murdered), coordinating sabotage, and acting as alibis for one another in discussions whenever a body is found (or when they self-report).

What are the effective ways for crewmates to counter the strategy of impostors roving together as a team? The only obvious thing to come to mind is that crew have to clump together in big clusters, but I feel that will really slow the game down (tasks will take forever to complete) and requires a level of metagame pre-coordination that might "break" the game.

The other obvious answer is "see how the stronger players respond to the strategy when it's used against them," but I fear the weaker players in my group aren't going to be able to muster the strong "roving impostor team" strategy effectively enough to require a stronger team to develop a defense – meaning I need outside insight and input to help me arm the weaker players, lest they fall victim to steamrolls endlessly.

Any ideas?