4★ Battleship Repair Cost
Research · STATION
Increase base repair cost efficiency for Grade 4+ Battleships.
- Tree
- STATION
- Requires
- Ops 42 · 4★ Assembly Line 1 · R&D DEPARTMENT 42
- Requires at level 10
- Ops 50 · 4★ Assembly Line 10
Research · STATION
Increase base repair cost efficiency for Grade 4+ Battleships.