When will the Halo 3 mythic map pack be released for DLC?

[city cowboy]

i know that you can get it by purchasing limited edition: halo wars, but i want to know when you will be able to buy it online over Xbox Live.
im not talking about the maps that are coming out with halo 3 odst. im talking about the maps that are coming out sometime in march

 

[The Man with a Camera]

Yup. It will be DLC and will also come with Halo 3: ODST

 

[Tony]

March 3, 2009 for America and Canada.

Earlier for UK I believe.

If you have a 48 hour xbox live trial code, can you please send it to me, Im so desperate to play tonight but I have no gold.