Make it a cage match. Each group starts out in a hanger at opposite ends of a large airfield. Anyone driving off the airfield is disqualified/ejected from the match. Beyond that anything's fair including using the rearm pad.
and the point of a 2.5k shot or less would be what? i could do that in my sleep. on a base with few things in the way.... it would be a shootout at the o.k. without more than a 4min fight.
imo if you were to do it you should take after the SDL, and do a minimum of 5v5 with both squads agreeing of the number on the day of the fight (like this week we have 7, can your squad match that?.. you can, good we will go with 7)