Since thirs really no point to alpha other than just killing anything you see why not make it sort of like a irica without bases. It would be the same teams that alpha has now. Their will be a time limit (10 minutes) the team with the most kills wins. Whichever team wins gets 200$ and 100 exp.
Also if you dont like that idea I got another one. Its like a deathmatch but with teams. Their will be 4 teams of 5 (or evenly split up with how many players their are) the team will be randomly picked. You and your team will all start off at the same spot. This is preety much a deathmatch with teams and a few added bunkers (for the teams) or you could look at this like a koth without re-spawning or capturing a hill. This map would require open space though which would mean getting rid of the trees in alpha.