The KGB has never paid much attention to official game ranks, preferring to establish our own structure. How about this?

Instead of the game rank signifying an actual rank, it conveys position or branch of service.

0 Recruit
1 KGB Fleet Marine Corps
2 KGB Navy
3 Commandant KGB Marine Corps (CMC)
4 KGB Chief of Naval Operations (CNO) (Zhou)
5 KGB Commander in Chief (CinC)(Jetstar)

Under both KGB Fleet Marine Corps or KGB Navy, we could establish as elaborate a rank structure as we want or need.

To the everlasting glory of the infantry...

Owain ab Arawn
KGB Supreme Knight
King's High Council