Green is the disgruntled communications officer at Ranger station Echo, whose job is to "spy" on the Legion base, Cottonwood Cove. His frustration stems mostly from the fact that the higher ups in the NCR military do not want to attack it, considering it a waste of resources, and he finds it maddening to not attack an enemy that is right in front of them.
"Undoubtedly. Rangers are tough nuts to crack, though, and any force small enough to launch a surprise attack isn't going back in one piece. On the other hand, if the Legion goes for a full-scale attack, we'll see 'em coming, fall back, and wait for reinforcements. So, we know what they'll do and they know what we'll do, so we just sit around and keep an eye on each other"