This is a very simple suggestion, but I think it would be cool to have parties that still exist outside of missions/arcade runs. So basically, how it works is you'd join/create a party by either clicking a "stay as party" button at the end of a run, (everyone who clicked it would remain in the party, whereas those who didn't would not.) or "create party" button in haven. Then, the party leader could join a mission, and everyone in the party would be brought to the mission with them. This would make it easier for people to play consecutive missions without having to regroup every mission.