I’m going to be blunt, but there are alot of lacking creativity toward the multiplayer system. On Reach (Though I personally never cared for it) there wasn’t only “Slayer” on BTB, but also capture the flag, objectives, territories, and much more. This “Dominion” playlist is a pointless add on. That should be included to the BTB set up and maybe to the regular slayer setup too.
And rotating these playlists; unsure if your testing the community or not, but even if you add in another week for SWAT to still exist, fan base players that love the playlist will be massively disappointed.
But for the most part, rather than worrying about how to rotate playlists, you should try improving the playlists that are perm on halo 4 and ensure that it doesn’t become so dull; like it is now IMO.