16inch Triple Gun Mount Mk.6 mod.2/Bonuses
| Ship | Extra Requirement | 
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Note |
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South Dakota-class North Carolina-class 
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(★0-5) | +3 | +1 | ||||||
| (★6-9) | +4 | +1 | |||||||
| (★MAX) | +4 | +2 | |||||||
Colorado-class Iowa-class 
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(★0-5) | +2 | |||||||
| (★6-9) | +3 | ||||||||
| (★MAX) | +3 | +1 | |||||||
| Any Other Fast Battleship (FBB) | +1 |