Leviathan Part 4 is part of TOS Arc 3 in Star Trek Fleet Command. There are 10 parts to this mission chain.
TOS Arc 3 also has Hidden Agendas mission chain as part of the arc.
Leviathan Part 4 Parts of the Mission
- Bring Scotty to Delta Vega
Location: Vulcan (23) Federation - Donate 500 G3 Raw Gas to power the facility
- Defeat the attacker (Battleship 101,520)
Location: Vulcan (23) Federation - Return to your Station
Location: player home system
Mission Reward for Leviathan Part 4
- 200 × Ship XP
- 119K × Officer XP
- 500 × Premium Recruit Token