It really is a ton of fun when playing with friends on VC. Make all player max vision and imposter min vision. Set Imposter to minimum kill distance. Imposter announces at the start who they are. They sabotage comms and are not allowed to sabotage anything else. Players are not allowed to fix comms or report bodies but must complete all tasks to win. Imposter can use vents (although you might want to disallow that if you need to balance the game out). We also allow all players to talk freely throughout the game. The imposter is on the same vc so you have to be careful what you say.