Mythic Map Pack release date Halo 3?

[Mr. Xinll]

I know the new mythic maps are coming out on April 9th for 800 MS points, they are Assembly, Orbital and Sandbox. But a few months ago when the the achievements arrived on Halo 3 there are 3 other maps mentioned, these are, Longshore, Citadel and Heretic when do these three come out???

 

[luke m]

Longshore,citadel and heretic are the maps that come with halo 3 odst in november.

 

[isa_chic]

with Halo 3: ODST