[SergeTrigger]

0 exp = New Recruit
500 exp = Third Class (Corrected by Knux Stravier,Mecha Knuckles(zs0))
2000 exp = First Class
4000 exp = Soldier
6000 exp = Veteran
10000 exp = Warrior
15000 exp = Corporal
20000 exp = Major
30000 exp = Sergant
?????? exp = ???????
150000 exp = ???????

I'll keep you updated as I go along the Rank Scale...... and Garel has told me that the final rank is at 150,000 exp.