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.
Halo reach is a improved game than Halo 3 ODST, so better graphics, game play etc. My personal option, yes, Halo Reach is better than Halo 3 ODST.
you need halo 3 ODST to access the halo reach multiplayer beta
No Halo 4 will not be coming out with a new story line but their is Halo ODST and Halo Reach and If you Buy Halo ODST you will be able to try halo Reach which comes out in 2010.
Buy halo odst
after Halo reach,there is no more In total, there is :Halo 1,Halo 2, Halo 3, Halo ODST, Halo wars and Halo reach
halo,halo 2,halo 3,halo3 ODST,halo wars,halo reach
I would say Halo 3 ODST
yes it will be HALO reach or ODST
play halo 1 halo 2 halo 3 odst halo reach then you will know
There is no way to get it without the Halo 3: ODST Campaign disk.
You can build stuff in halo 3,halo 3 odst and halo reach.
The halo time line goes Halo Wars, Halo: Reach, Halo:CE (halo 1), Halo 2, Halo: ODST, Halo 3. Halo 3 and ODST are practically at the same time.