Combat

Night Combat Attacks

 * Night battle damage = Firepower + Torpedo attack. DD, CL, CT and CA are good at night
 * Any vessel at night must not have taken more than moderate (orange) damage before nighttime in order to participate in night battle.
 * Main Gun = Red guns or 10cm High-angle Gun
 * Secondary (Sub) Gun = Yellow guns / 12.7cm High-angle Gun / 8cm High-angle Gun
 * You can add other equipment like Radar, Tubrine, Ammo or repair team to the empty slot, that will no affect the combination.

Victory Conditions

 * Perfect S
 * No damage taken, all enemy ships sunk.
 * S (Victory)
 * All enemy ships sunk.
 * A (Victory)
 * No friendly ships sunk and required number of enemy ships sunk.
 * Sink 4 of 6, 3 of 5, 2 of 4, 2 of 3, or 1 of 2.
 * B (Tactical Victory)
 * Enemy flagship sunk.
 * No damage taken, and enemy took over a certain amount of damage.
 * Damage gauge at least twice enemy damage gauge.
 * Friendly ship sunk, specified number of enemy ships sunk, and damage gauge twice enemy gauge.
 * Friendly ship sunk, enemy flagship sunk, and damage gauge twice enemy gauge.
 * C (Tactical Defeat)
 * Didn't clear any of the conditions for A or B, but enemy took over a certain amount of damage.
 * Damage gauge higher than enemy gauge, but not reaching twice as much.
 * Friendly ship sunk, damage gauge higher than enemy, but not twice as much.
 * D (Defeat)
 * Enemy took less than a certain amount of damage.
 * Both sides taking 0 damage is also D.
 * Damage gauge lower than enemy gauge.
 * Friendly ship sunk, not all enemy ships sunk, and gauge lower than enemy gauge.
 * E (Defeat)
 * Over a certain number of friendly ships sunk.
 * Friendly ship sunk while not meeting any victory conditions.
 * No damage done to enemy, while taking over a certain amount.