IRON NEST Mission 3 Walkthrough

Mission 3: prepare before you reveal yourself

Mission 3 is the campaign's counter-battery problem. The release-version briefing states that hostile counter-battery timing begins when your first shell lands. That makes everything before the first impact a protected planning window.

Your objective is not merely to shoot quickly. It is to move as much thinking as possible before the timer: plot the IRON NEST, place observation assets, solve known artillery positions, build firing cards, requisition ammunition and assign loads to both barrels.

Step 1: build the observation map

1. Copy the current IRON NEST coordinate from the briefing.
2. Place every named observation asset before drawing target lines.
3. Keep the observer identifiers attached to their coordinates; later bearings are meaningless without the correct origin.
4. Plot each reported bearing, distance or second observation exactly as stated.
5. Mark the supported intersection/position as a hostile artillery candidate.
6. Keep uncertain candidates visibly separate from confirmed batteries.

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Step 2: prepare the opening sequence

Before firing, make one card per intended target and keep the card, shell, charge plan and barrel assignment together.

• Solve every target supported by the initial briefing.
• Requisition enough appropriate shells and charges for the opening sequence.
• Load or stage both guns only after their cards are internally consistent.
• Arrange target order to minimize unnecessary traverse while preserving priority.
• Keep reconnaissance available for batteries that are not yet located.
• Run the firing checklist on both barrels; a fast wrong shot starts the enemy timer without removing a threat.

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Step 3: execute under counter-battery pressure

1. Fire the first confirmed solution and begin the prepared follow-up immediately.
2. Read the latest mission feed after every impact; the priority can change when a new hostile battery is revealed.
3. If an unlocated artillery threat appears, pause lower-priority work and use reconnaissance or new reports to establish it.
4. Destroy confirmed counter-battery threats before returning to ordinary targets.
5. If survival pressure becomes unacceptable, use the documented Emergency Move workflow, then relocate the IRON NEST marker and invalidate every old firing line.
6. Continue until High Command confirms that no hostile artillery threat remains; “one target disappeared” is not the same as mission completion.

Mission 3 troubleshooting

Symptom	Likely cause	Recovery
The timer starts and the second gun is not ready	The opening shot was fired before staging cards, shells and charges	Prioritize the confirmed incoming battery; on retry, move all safe preparation before the first impact.
Two observation lines do not meet exactly	Report uncertainty, wrong observer origin or transcription error	Verify observer IDs and bearings, then treat a near crossing as an uncertainty area and confirm it with recon.
The mission says artillery remains but the map looks clear	A later/hidden battery has not been confirmed	Read the latest feed, use reconnaissance and preserve newly revealed markers instead of blind firing.
A prepared shot misses after Emergency Move	The firing line still uses the old IRON NEST position	Move the IRON NEST marker first, then rebuild bearing, range, charge and elevation.
The wrong shell is already loaded	Loading began before the target/card pair was locked	The gun cannot be unloaded; use the other barrel for the urgent target or preserve the load for a valid later target.

This page intentionally omits the recorded coordinates and firing numbers. They prove the workflow existed in the release build, but they are not a reliable answer key for another run or patch.