Plutonium

Good evening, I'm trying to do the super Easter egg on Richtofen's side, with three players. I didn't have any problems with anything except for the last step in Buried, where there's a shootout, and it's not working. We're counting the targets shot and we're shooting all the targets correctly, but it's not working. I installed the mod so that the targets are between 61-65, but even hitting all the targets isn't working for us. Any solutions? Thanks!