Thread:ProjectPredacon/@comment-26464372-20150320202214/@comment-25958301-20150320224744

Oh, turns out they were fighting throughout the drydocks on the mission Pillar of Autumn. Still, that's their small appearance. Do not confuse them with Reach Army Troopers, there's a colour configuration that differences the two.

"Note: Do not confuse the UNSC Marines and the UNSC Army troopers in Halo: Reach. The two can be distinguished by their armor color. Marines have brown armor compared to the Army's primarily khaki." -Halo Wikia