Standing at a normal adult Mobian height of 3.7ft, Marcus is a blue fured Moebian cat with red eyes, (which is a recessive genetic trait on Moebius). He is usually seen in various uniforms and often wearing different gear according to the task at hand.
"Shit! Enemy dudes, 12 o clock! Light em up! Light em up!"~Marcus under fire.
Marcus is very bizzare for a soldier as he possesses all the traits that normally would be seen as bad for the army, but in combat he shows bravery, skill, and your average Moebian ferocity.