It is not possible
you must have several achievements from HALO 3 and HALO ODST. Along with certain achievements from HALO REACH. Then you will unlock the two helmets
halo wars, halo reach, halo CE, halo 2, halo 3
There is two ways to get it #1 unlock all of the armor #2 is to become the highest rank in halo reach
Halo reach is older
yes
no, Masterchief is not in Halo: Reach. Halo: Reach is set before the discovery of Halo, if you have or Know about the Halo book: The Fall of Reach, it is a closer view of the plant reach. but there are some other Spartans in it!
no
halo reach is the bomb
There are no skulls in Halo Reach.
after Halo reach,there is no more In total, there is :Halo 1,Halo 2, Halo 3, Halo ODST, Halo wars and Halo reach
No, Halo Reach shows what happened before Halo 1. In fact, in one of the missions in halo reach, you can see Master chief
halo,halo 2,halo 3,halo3 ODST,halo wars,halo reach