Two-Six Team

Two-Six Team are Marines who assist the SAS team on the assault on the Control Room in the level No Fighting In The War Room. They first appear in All In, after you destroy the Ultranationalist APCs, rappelling from two Blackhawk helicopters. Two of their mentioned names are Two Yankee Six and Two Delta Six. If you look down the grates in the vents while you are still in them, you can see some of the Marines fighting the Ultranationalists.