no bungie do
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 own it and halo reach is way shorter (but harder) then halo 3.
you buy it
No, not unless you download it from the EA Store using the EA Download Manager.
No ODST comes as its own disc and if you own odst you get a beta of Halo Reach in 2010
no you dont they are each there own game
if you are saying how do you make your own world in halo reach, use forge mode to make a map.
It is your own opinion
I would say if you don't own reach then don't buy it. From what I hear, halo 4 is going to be similar to Halo 3.
in halo combat evolved u cant create ur own stuff in halo custom edition u can
You need to do forge to create your maps in halo 3
everyone in the world has their own oppinion in halo to some people it is cool to others it isn't