Master Sergeant 5 
is the last subrank in Master Sergeant, and it's after Master Sergeant 4. This rank requires 429,200 EXP. The rank after this is Second Lieutenant 1.
Channels[]
Public-
- A.V.A Free Channel 1 ~ 4
- Prison Break Channel 1 ~ 3
- Practice Channel 1
Clan Channel (If in a Clan)