Flag based
Design your teams flag… kill enemy squads take their banner… plant them at locations of your choice… collect all flags to win…
Squad of 3 and warthog get dropped in by pelican… a flag is dropped it reveals location of the corresponding team on map. Spartan carrying flag can shoot and move at normal speeds.
Team can carry up to 7 flags before having to plant them… on scoreboards on map… 1 flag per person plus 4 on back of warthog.
Teams respawn as long as they hold the flag but once flag is picked up by enemy team they get 1 last respawn and that’s it.
Each flag plant gives your team and upgrade to a weapon or 3 for a new tier of starting weapons, five for a vehicle, seven for a top tier vehicle… etc…etc… otherwise, loot and fire
That’s the start… any critique so far