There are five difficulty tiers:
- Novice - Unlocked at Brotherhood level 7
- Adept- Unlocked at Brotherhood level 13
- Expert - Unlocked at Brotherhood level 29
- Master - Unlocked at Brotherhood level 37
- Grandmaster - Unlocked at Brotherhood level 45
Each tier increases in power score team requirements. The higher the tier, the more Data Nodes are awarded for that mission.
If you complete all missions with three stars on any difficulty tier, the next tier up unlocks automatically even if you do not meet the Brotherhood level requirements.
If you complete all missions with three stars on any difficulty tier, the next tier up unlocks automatically even if you do not meet the Brotherhood level requirements.