Just play and play till you get to Captain.
The fastest way to rank up is to boost in campaign. Search "halo reach campaign boosting" on youtube =)
you need to be the rank of captain
There will not be another Halo game after Reach.
After the rank captain and captain grades 1, 2 and 3 is Major
After the rank captain and captain grades 1, 2 and 3 is Major
Captain
yes halo reach
Actually Halo 4 is the next game.
game
Reach is the planet that the game is based on.
In halo reach,You can not use cheat codes.nor in any halo game
After halo reach there will no more halo games.