Halo 3 Mythic map pack(help please)?

[Eddie]

so i have heard that there are 3 new maps but is there anything else?

are there any new missions?

 

[snowpeak197]

Nope. Bungie DOES plan to make Campaign DLC in 2 years, and some more Map Packs. And the 3 maps that come with Halo Wars LCE or buy the first half on the Marketplace 4/9/09 for 800 MS points or 10 dollars. The second half ships with Halo 3 ODST, a campaign expansion set to release this fall

 

[Hellfighter5]

No there is no new missions there are only the 3 maps