IRON NEST How to Calculate Bearing

Before measuring

Plot the IRON NEST and the target on the tactical map. If the target came from two spotter reports, finish the intersection first; a precise bearing to a guessed position is still a bad firing solution.

The release-version map uses a 20-by-10 main grid: columns A–T and rows 1–10. Each main square contains a 10-by-10 sub-grid numbered from 0. Place tokens at the sub-grid level before measuring because a small position error changes both direction and range.

Pick the right map tool

The community basics guide distinguishes three pencils:

• Red: measures bearing and range and copies the result for the firing workflow.
• Yellow: measures bearing and range without copying it, useful for construction lines and target location.
• White: draws without producing a measurement.

Use yellow lines to solve observations. Use the red line only after the target position is settled and you are ready to create the turret-to-target measurement.

Bearing workflow

1. Put the IRON NEST token at the position given by the current briefing.
2. Put the target token at the verified intersection or known coordinate.
3. Start the red measuring line at the lower reference spike of the IRON NEST model, not an arbitrary edge of the large token.
4. End the line at the plotted target.
5. Read the horizontal direction and range produced by the map.
6. Transfer the bearing to the gun controls and keep the measurement card available for the final check.

The reference point on the large IRON NEST marker matters: measuring from a different part of the model shifts the origin enough to spoil long-range shots.

Coarse and fine turret rotation

The turret provides a fast but less precise lever and a slower wheel for fine adjustment. Move most of the distance with the lever, then finish on the requested bearing with the wheel. Use the firing card as the target value rather than estimating from the turret's visual direction.

Common errors

• Drawing from the target back to the turret, which gives the reciprocal direction.
• Measuring from a spotter instead of from the IRON NEST after triangulation.
• Starting from the center or edge of the oversized map model instead of its reference spike.
• Leaving the IRON NEST token at its old position after a move.
• Treating a rough main-grid placement as an exact sub-grid coordinate.

Keep the final line direction consistent: IRON NEST → target.