Combat Instructions

Combat Instructions are similar to consumables: when activated, they have a time-limited effect. However, they have to be made ready before every use by filling a progress bar where the progress increases under certain conditions. As long as the bar is not full, progress decreases when it has not increased for some time. There is no cooldown or preparation time and no limit on the number of uses. Combat Instructions are usually activated by pressing the F key (exception: with Archerfish, it activates automatically when it becomes ready). While Combat Instructions are active, there are one or more white lights on the superstructure.

These ships have Combat Instructions:

Ship	Tier	Type	Nation	Kind	Name of Combat Instructions	Condition to increase progress	Effect
Almirante Cochrane, Coronel Bolognesi, Ignacio Allende, Santander, San Martin	VI–X	Cruiser	Pan-America	tech-tree	Consumable Operational Readiness	hit enemy with main gun shell	better consumable preparation and reload time
Almirante Grau	VIII	Cruiser	Pan-America	premium	Immediate Main Battery Reload	stay undetected for a certain duration	better main gun reload time
Ipiranga, Los Andes, Libertad	VIII–X	Battleship	Pan-America	tech-tree	Modified Secondary Munitions	hit enemy with main gun shell or receive certain amount of potential damage	better secondary gun range + reload time + damage
Valparaíso	IX	Battleship	Pan-America	premium	Consumable Operational Readiness	hit enemy with secondary gun shell or destroy enemy ship	better consumable preparation and reload time
Wisconsin	X	Battleship	U.S.A.	special	Immediate Systems Reload	hit enemy with main gun shell	better main gun reload time, better consumable preparation and reload time
La Pampa	X	Destroyer	Pan-America	special	Covert Consumable Readiness	hit enemy with torpedo or stay undetected for a certain duration	better consumable preparation and reload time
Archerfish	X	Submarine	U.S.A.	special	Immediate Torpedo Tubes Reload	hit enemy with torpedo or receive certain amount of potential damage	better torpedo reload time, better consumable preparation and reload time
Admiral Ushakov	★	Battleship	U.S.S.R.	tech-tree	Immediate Main Battery Recalibration	hit enemy with main gun shell or receive certain amount of potential damage	better rmain gun range + dispersion
Hannover	★	Battleship	Germany	tech-tree	Direct Control Over Secondary Battery Crews	hit enemy with main or secondary gun shell	better secondary gun range + reload time
Satsuma	★	Battleship	Japan	tech-tree	Immediate Main Battery Fire Adjustment	hit enemy with main gun shell	better main gun dispersion
Maine	★	Battleship	U.S.A.	tech-tree	Immediate Threat Elimination	hit enemy with main gun shell	less damage taken from fires/floodings, better continuous AA damage
Jacksonville	★	Cruiser	U.S.A.	tech-tree	High-Explosive Barrage	hit enemy with main gun shell	better main gun HE penetration