I'd like to see a gang related activity as well! It would make it really competitive, and more interesting!
Here is what i think would be fun.
The Forest
-You and your gang members will be placed in a forest scattered
-Each member will have to find a safe zone which would be a circle (Like a large indicator) around a map that is a dark and creepy forest
-While looking for the safe zone a NPC (Killer) will spawn the sametime you spawn and try to kill anyone (possibly 8-10 damage)
-Players can't heal
-Each 5 rounds completed another NPC (Killer) will spawn
-Maximum of 8 NPC's
-Each time a member enters a safe zone they will be warped to another room until each member can reach it or dies
-Rounds will be complete once every member is inside the safe room that is alive
-Rounds keep on going on till all members have died
Team Vs Team Zombie Battle
-Your gang and a gang (same amount of members, at least 5 in each gang) will be in a gang spar like room thats halloween themed
-All people inside will be a zombie, but the color of the zombie depends on your team (Green zombies, and Red zombies)
-You will only be able to bite
-One bite will deal 10hp damage
-Last team standing wins