Human power system
3rd grade soldier = 5 adults
2nd grade soldier = 10 3rd grade
1st grade = 20 2nd grade
Grade 0 = 50 1st grade
After that its the top 10 in the world with a world ranking and title haven't made it yet though hehe.
Dungeon power system
Grade - 1 dungeon room = 5 3rd grade soldier
Grade - 2 dungeon room = 5+ 2nd grade soldier (depending on experience)
Grade 3 dungeon room = 10+ 2nd grade and 3 1st grade soldier
Grade 4 dungeon room = 10 1st grade soldier and 5 grade 0 soldier or 1 top 10
Grade 5 dungeon room = Dungeons only possible if top 10s conquer it together