It seems that the suit is called A/X Here is the link: http://halo.xbox.com/forums/games/f/5/p/7250/70316.aspx#70316 There is also extra information on other stuff.
Erickyboo 04:07, 25 June 2011 (EDT)
merger is neededEdit
This page needs to be merged with the Marine BDU. The New version of the Encyclopedia confirms that the Army and Marines use the same BDUs