When I was playing RO after 5 days of no pc (boattrip with school) I started to think. Why is there a time limit? Surely the reinforcements are good enough to be a time limit on its own. IRL there wasn't a guy yelling "5 minutes chaps, then we stop and see who has the best score or just give up". Ofcourse there would be the trouble of people who are afk in spawn while the team is out of reinforcements, thus the other team can't kill every last one of them. So have a time limit when the team runs out of reinforcements, like 5 minutes.