you would think that the following week after Castle was released, there would be a DLC Playlist for the 9 maps of the map packs (not including Forge Island) [which didnt happen]
its such a hassle to have to switch to different playlists to play a couple of maps
*remember: these are just theories of what could happen until 343 says and does something*
the quotes below are from the waypoint forum
just because a dlc map choice appears at voting, doesnt mean it will get voted for or recieve the most votes
the quotes below are from various different sites while looking for any useful info
i dont see how this quote fits into this
"three or four months after a map pack goes online, most "core" playlists like Infinity Slayer and Big Team Infinity Slayer should be made DLC-mandatory, just like Halo 3"
after the last quote listed, the only thing that came up in searches was informaton relating to the different dlc map packs such as the maps, achievements, and reviews
at this time, all we can really do is make different theories and guess