So hunger games mode?
Maybe another mode could be half of the game being murderers, half of the game detectives in a team death match sort of battle. Reloads would be similar to that of a gun v3, and murderer knives pickup instantly as they hit the ground. Detectives blue, murderers red, everyone can sprint. It's a silly unpractical idea, and I personally don't like it, but maybe it'll inspire someone else down the line yea?