This is a modified skin. I am not sure who made the original because so many people posted modified versions of it.

Anyway this is a GAHC Marine. The GAHC are the most highly trained elite force in history. They go through a grueling training course and they have the equivalent training time of 1 year. They also train in-between actions.

GAHC Marines have multiple roles. There is a contingent of marines ranging from 6 to over 150 on GAHC ships They have masks on because GAHC sometimes operate in air to thin to breath without a mask. They are also used for amphibious landings.