Rotating game mode: Payload

I was thinking a 3v3 or 5v5 on howling abyss but with a point on the center of the map. after a team takes control of the point (by right-clicking it, takes like 7 seconds to cap it) the payload spawns in, and the team who got the point tries to push it into the other team's nexus. they get 15 minutes to push it into the nexus.

Respawn timers are short and you get 3g per second. there are no turrets on the map, but minion waves still spawn.

and that's pretty much my idea, thanks for reading.