The backbone of the Valour military.
Those who are in the armed forces are placed to a higher standard than your average citizen. Many marine recruits were enrolled in the Blue Shirt academies, a military school that trained young boys and girls in the art of war so they can have a better sense of how they want to serve Valour when they enter the adult world.
In addition to grueling physical training programs, recruits must also go through several academic and practical courses ranging from military theory to battle armor maintenance.
Those that have survived the pruning undergo gene therapy treatment so their bodies can even survive using the Standard Powered Battle Armor.
Only the most athletic and disciplined recruits have a hope in hell of graduating from the Marine Corps. Recruits are broken down and rebuilt from the ground up, whatever individuality they once had has now been supplanted by unwavering loyalty to Valour and their brothers in arms.
Some of the non-classified genetic enhancements include Pallassteel infused skeleton giving the bones of new marines to repair from virtually any injury.