I think a Capture The Flag event could be cool.
Gangs-disabled CTF:
Not sure if people would prefer gangs enabled or not. But for a gang-disabled CTF, maybe have the capture place for the flag in the middle of the map somewhere (captures at middle of the map gives 50 points, for example). Then have 4, smaller captures in other places around the map (captures in other places around the map gives 20 points, for example). Also have more than 1 flag in the event, so that there's multiple flags people are fighting for at once. Either have it so that once you're hit you drop the flag, or once you're killed you drop the flag.
Gear wise during the event - maybe have it so that everybody has the same gear? You'd respawn with the gear once killed.
Winner could be person with the most points overall. As for the prize, idk lmao.
Gangs-enabled CTF:
Same concept as above: one capture place in the middle (giving 50 points to the gang who gets the flag to the capture point, for example) and then 4, smaller captures in other places around the map (giving 20 points, for example). Maybe just have 1-2 flag(s) in this event? Either have it so that once you're hit you drop the flag, or once you're killed you drop the flag.
Gear wise during the event - maybe have it so that everybody has the same gear? You'd respawn with the gear once killed.
Winning gang would be the gang with the most points overall. Reward could go to the leader of the gang or something.
For both gang enabled/disabled CTF, have the flag(s) spawn at a random point to start. Then, once that flag has been captured, it will respawn at another random point in the map.
Have a certain time limit for the event as well.
Gear for the event could be prot 1 iron, sharp 1 iron sword, bow with a stack of arrows, and a couple of gapples for each person.
Just an idea