Could you describe the problem in more detail or using a video? The game allows for you to attempt the boss fight step with more than 4 players as long as the Weasel is one of the characters present in the match when you try boarding the plane in Afterlife after entering the numbers and collecting the audio logs. However, without some script that handles it, not all players will be guaranteed to be present in the fight. There will always at least be 1 Weasel and 3 of the other mobsters on the bridge. You could get more of the mobsters that aren’t Weasel to be on the bridge depending on if they got to ride the final plane and if their player indexes are higher than the 3 players that the game will decide to teleport to the bridge when everyone is revived, but for anyone else you’d need a script to handle them.