This is a total conversion mod for Empire at War / Forces of Corruption. It takes place right after the Battle of Geonosis in "Attack of the Clones". Replacing the Empire, Rebels and Zann Consortium with the Galactic Republic and Seperatist Alliance along with The Hutt Cartel, Pirates and Neutral Worlds.
These 3 guys with the rank insignia ???
Correct. Sergeants will now have a ceveron below them in land combat so they can quickly be identified to lead a squad on a mission of your choosing. This is necessary because the sergeants have good FOW reveal range so your clones can quickly deal with enemy units that have just spotted them. No Sergeant means the enemy will shot at you a second or two before you can start shotting at them. In battle that means losing some good clones.
It means they are a higher rank or something
I like this idea.