you cant
You cannot make your own maps in Halo: ODST, it doesn't contain forge world. Halo 3, Halo: Reach and Halo 4 all contain forge world.
i am VERY sorry to inform you of this, but you cant. in halo 3, halo reach, and halo 3: complete multiplayer experience you can.
ODST does'nt have the AR.
muythic map pack. that comes with HALO 3: ODST
Yep.
Yes.
Yes. There are at least two more. One is Halo 3: ODST, which is an FPS starring and ODST (it will also come with every multiplayer map from Halo 3.) The second is Halo: Reach, which nobody knows much about. Look for a preview in ODST.
On Kilowani Station. Which is the final clue.
yes only multiplayer has the new map packs but you can get them in the DLC
All of the maps, including The Mythic map pack 1 and 2, come on the Halo 3: Mythic disk that is included with ODST. If you don't want to buy ODST, I believe that the full Mythic maps are available on Xbox Live marketplace.
Halo 3 ODST will contain a brand new and exiting campaign, ready to be completed. It will also have all the maps in Halo 3 and all the DLC including the 2nd half of the Mythic Map pack. Halo 3 ODST (like other Halo games) will have secret skulls on the new maps so you can get achievements on Forge and on the Campaign. Also it is NOT Halo ODST it's Halo 3 ODST.unfortunantely it will not have killstreaks like mw2 which i do believe is a much better game since odst is only considered an expansion packand yes mw2 is not better than odst.
It is not like the multiplayer map pack. Halo 3 Recon is a new game that depicts a new campaign as an elite ODST unit during the events of both Halo 2 and 3.