Oxide

Oxide is a radio operator for General Shepherd who gave orders to many squads of Shadow Company in Call of Duty: Modern Warfare 2. He can be heard in the level Loose Ends just before you are killed by Shepherd it is Oxide who said "Gold Eagle on the ground we have snipers on thermal" which sparked the debate over Archer and Toad. In "Just Like Old Times" he can be heard telling Butcher Seven to check out the section that Captain "Soap" MacTavish and Captain John Price took out as well as on the radio chatter heard between Shadow Company throughout the level.

Trivia

 * Oxide is the Shadow Company equivalent of Overlord, the U.S. Army Rangers' command base.
 * Oxide sounds young despite being a high rank (more than likely he is the RTO, or a COMM Specialist in a TOC).