Kinda mixed this idea with OWs Battle Arena, Mission 1, and Mission 8. I think it'd be good if every 30 minutes an auto-event occurs where players can join a round-escalating game like zombies where everyones on the same team.
After every 30ish levels the players who participate could gain 1ZC. Kinda like Mission 8 but those ships are annoying af, I was thinking more along the lines of the actual aliens. Also would be on a much larger map and you would not be able to respawn until the round is over. The game ends when everyone dies within one round. I was also thinking it'd be cool to be done in Mission 1s level since it's actually very good and nobody ever uses it anymore. The space could also help form mini-teams self-responsible for a sector. Dunno, what does y'all think?
(Wrote that first on the In-Game forums. Sorry for the unusual lack of details, I usually write less on that... I also CBA to go back and include more soo)