What gamemodes are in action sack

Been away for a while but i see its coming back on the 18th so maybe I can finish my comms anyone know what game modes are included in it?

There exist a huge variation of gamemodes in the Action Sack playlist like Ground Pound Arena, Riftball (Grifball variant), Painball and few more. You can find few gamemodes and maps in the playlist in this news article. https://www.halowaypoint.com/en-us/news/action-sack-refresh