These are the ranks. Respect those above you (you don't have to salute or anything).

General of the FDG: No_shot

Lieutenant General: Deadrius, Yuffie_Kisaragi91692(Korelia)

Major General Cervantus Da Leanordo, Collegeboy

Colonel Twistee, Masamune No Hi

Major Jio_Freed, Ashimeru

Captain war3_master, magic_dragon92

Lieutenant Ryogu Shogun, Elemental Dragon King

Sergeant

Corporal

Private

Now, if you aren't on this list, you will need to contact an official (Captain and up). That official will determine whether you are worthy of a promotion or not. (You are all privates at the moment, there are too many of you to list).