the highest rank is general grade 4 witch is achieved at 50 high skill or 5000xp.
The highest rank in Halo: Reach is Inheritor.
5 star general
ItzThatGuyMatt has all medals and is a 5 star general which is the highest rank.
A level 50!
once you get to the highest level you reset
it means to get a higer rank it doesnt make you better at halo 3 but what i said before it some times makes you a higher rank :)
Inheritor.
Inheritor is the maximum rank so far in halo reach
General grade four
The Sangheili Councilor is the highest attainable rank, however the Arbiter is more religiously significant.
The highest possible rank in Halo: Reach is Inheritor (20,000,000 cR) but the highest rank with Grades is General which has FOUR grades (grades are credit milestones which are included with all ranks up to General).
sr 130