The Idea: My rendition of The CO's of Orange Star Army from the Game Boy Advance game Advance Wars. The original artwork, if you play it or search it from the net will look very cute and anime-like. Well I decided to give it my own perception and style while retaining the original distinguishing features of the characters. Let's go counter-clockwise from left:

Andy: The boy tech-wonder of the group. His specialty is at making repairs in any kind of machine even during combat. As such, I pressume him to be the commander of the technical staff corp with the rank of somewhere from Lieutenant to Captain or Major. Not sure. Just designate whichever you like

Nell: The Blond bombshell of the group. Essentially the brains of the Orange Star army. She is presumably the Chief of Staff or the S3 as she is the one who will give you the power to assume command and has power over the rest if the officers. Has the rank of a General or a Colonel.

Sami: The tomboyish tough babe of the group. Her specialty lies at mobilizing ground troops specifically the infantry to take hold of any territory hard and fast. Presumably with the rank of Major to Lt. Colonel and has the position of S1.

Max: The staff's muscle and the commander of the Heavy Armor Division. When he assumes command, the momentum of the Armored Division, particularly the heavy Medium Tanks increases tremendously; overpowering any ground fighting units head-on; blasting even an evenly numbered Medium Tank battalion of the enemy.