"Welcome to the 31st OMU recruit! As a new member of the Resistance Militia on Orion 6 you need to be knowledgeable about the fascist scum that you'll likely be pointing your rifle at. The regular UMFL grunts out in the badlands shouldn't give you too much trouble, it's those damn snakes you should be really worried about. They're all hardened veterans, but sometimes you can gain an advantage by taking out the commanding officer. It's not going to make these grizzled warmongers retreat, but it might give you a moment while they regroup to change the tide of the battle. There are a few nuances to the command insignia, but if all else fails the one with the most green is the one in charge!"
Soldiers ranked at either private of specialist do not wear any special colors. Privates are assigned standard loadout frames and make up a majority of the Serpent Legion forces seen on the field. Specialists only differ in the way of gear. They are usually given more freedom with the loadout of their frame to fit with their skillset.
Low ranking officers wear a splash of dark green on the left side of their frames. This can either be on the shoulder, or left side of the torso, but not both. These officers are generally given free-reign to loadout their frames with any standard issue equipment available in any configuration they choose.
As we move up the chain of command, the command color switches from the left, to the right side of the frame. Again, this can either be on the torso or shoulder, but not both. Lieutenants are sometimes given non-standard issue or even prototype gear to use in combat.
Moving up to the Captain, the command color returns to the left side, but now the head is also green. The coloration of the head signifies a new rank increase while the coloration returning to the left signifies a lower rank in that "tier". These officers can carry nearly any range of gear, so be careful.
Moving Further up the chain of command continues the same pattern. A Major would be the same as a Captain, only the color would move to the right side of the frame instead of the left. Colonels have both the torso and shoulder colored on the left in addition to the head, and Brigadier Generals (in the rare instance that one would actually be on the field of battle) would have both the right side of their torso and right shoulder colored.
"You got that recruit? Remember it! It could save your life out there! Now go make sure that new Meerkat of yours in in tip top shape! The last thing you need is an actuator jam in the middle of a firefight."