The complete 15-operation order
The campaign begins with Calibration Fire, then moves through Fire and Light, Liberation, Counter-Battery, and Iron Road. The middle stretch is Siege of Cartagena, The Gorge, Rock of Gibraltar, Dead Reckoning, and Fire on Call. The final stretch is High Tide, Blind Fire, Phantom Battery, Final Harvest, and White Shells. Keeping the names in this order makes it much easier to compare a walkthrough with the operation currently shown in your game.
Why some players count only 14
The 14-versus-15 difference is mainly a counting convention, not evidence of a missing mission in one version of the campaign. Lists that stop at Final Harvest often describe White Shells separately as the ending or finale, while other lists count every named playable operation. If two guides disagree, compare their names instead of comparing only their numbers. A guide with 14 numbered entries may still cover the same sequence if White Shells appears in a separate final section.
Operations 1 through 5
Calibration Fire introduces the physical work inside the Nest, including reading information, preparing a shot, and operating the machinery in sequence. Fire and Light expands that loop by asking you to use the right ammunition and respond to changing battlefield information. Liberation adds more demanding report interpretation, reconnaissance, underground targets, and friendly-force risk. Counter-Battery turns preparation speed into a survival problem, while Iron Road asks you to keep the whole firing process organized as the campaign opens up.
Operations 6 through 10
Siege of Cartagena is the sixth operation and centers on reconnaissance, coastal artillery pressure, and the transition into a larger city fight. The Gorge follows with damaged systems, convoy protection, and a greater need to correct fire from observed impacts when normal tools are limited. Rock of Gibraltar, Dead Reckoning, and Fire on Call continue to test whether you can turn reports into correct target positions without losing track of the current objective. These missions are less about memorizing one answer and more about preserving an accurate chain from report to map to gun.
Operations 11 through 15
High Tide begins the final five-operation run, followed by Blind Fire and Phantom Battery. Final Harvest leads into White Shells, which is why some lists present White Shells as a campaign conclusion instead of operation 15. Late missions expect you to reuse earlier skills while handling more pressure, incomplete information, and tighter consequences for the wrong shell or target. Before committing a shot, reread the current report because a familiar-looking task can still use different coordinates, ranges, or priorities in another run.
How to track your campaign position
Use the operation name displayed by the game as your primary progress marker, because a bare number can become ambiguous when another list uses the 14-count convention. Add the current objective beneath that name, especially if you stop midway through a mission and return later. When a walkthrough says Mission 6 or Mission 7, confirm that it also says Siege of Cartagena or The Gorge before following its advice. This small check prevents you from applying a correct solution to the wrong operation.
Campaign order is not a firing solution
The operation list is stable, but individual firing data should still come from the report and map in your current run. A bearing belongs to the stated observer, a distance belongs to the stated origin, and a target may require a different shell than the last objective. Do not copy a coordinate, elevation, charge, or correction merely because the operation title matches. Use a walkthrough to understand the method and sequence, then perform the measurements shown by your own mission state.
Where to start when you are stuck
First confirm the operation name, then read the newest objective and every active report from the beginning. Mark the named observer or location on the tactical map before drawing any bearing or distance information. If the target is underground, armored, hidden, or close to friendly forces, resolve that condition before choosing ammunition. Only after the target point is established should you calculate the final Nest-to-target range and prepare the gun.