Map & targeting

How to Triangulate

Triangulation turns two directional reports into one estimated position. Accuracy depends less on complicated math than on using the correct origin for each report and drawing both bearings in the correct direction.

● Researched from official material and cited community evidence · Patch-sensitive details are labeled · Updated August 9, 2026
IRON NEST tactical map with grid, clipboard, markers, and measurement instructions
Map tools turn field reports into a target position, bearing, and range. Official Steam screenshot.
Minimum clues2 bearings
Best geometryClean crossing
ResultEstimated point

What triangulation solves

A single directional report describes a line, not a unique point. A second report from a different known position creates another line. Their intersection is the estimated unknown position.

Translate each report literally

For every message, record three things: who or what occupies the known origin, what unknown object the bearing describes, and the stated direction. Do not combine two reports until both describe the same unknown object.

IRON NEST reconnaissance photograph overlaid on the tactical grid
Reconnaissance evidence narrows a search area before scarce ammunition is committed. Official Steam screenshot.

Plot the intersection

Work carefully and keep every report tied to its own origin. Small errors grow when the lines meet at a shallow angle.

  1. Place the first known reporting position.
  2. Draw its reported bearing outward in the correct direction.
  3. Place the second known reporting position.
  4. Draw the second bearing.
  5. Mark the crossing point as estimated, not confirmed.
  6. Use later messages or recon to validate it before spending scarce ammunition.

Check the geometry before firing

A strong intersection uses lines that cross cleanly and lands in a plausible area. Nearly parallel lines magnify tiny drawing errors. If the result lies far outside the described region, first test whether a bearing was reversed by 180 degrees or a report was started from the wrong marker.

Common failure points

The four recurring mistakes are reversing a bearing, measuring from the NEST when the report originated elsewhere, mixing observer and battery reports, and measuring the final shot before updating a moved NEST marker. A convincing intersection can still be false, so preserve the source label beside every line.

Operator field note

Good geometry is more valuable than extra precision

Two lines that cross at a strong angle usually produce a more stable estimate than two nearly parallel reports. When the geometry is shallow, a small plotting or reading error moves the apparent intersection a long distance. Do not make a weak crossing look authoritative by drawing thinner lines; label the area as uncertain and seek another report from a meaningfully different origin.

Source labels matter as much as angles. A clean intersection can still be false if one bearing begins at the NEST instead of the named observer, describes a different target, or points 180 degrees in the wrong direction. Preserve reporter number and subject beside every line so the result can be audited when new intelligence arrives.

Triangulation locates the target; it does not create gun data. After the target point is accepted, draw a separate line from the current NEST to that point. Only the final line supplies traverse bearing and range for the ballistic calculator.

Sources & verification

Mechanics can change after patches. Official references and clearly labeled community findings used for this guide:

Official Steam pageCommunity beginner discussion and examples

Quick clarifications

Frequently asked questions

Can one bearing locate a target?

No. One bearing defines a line of possible positions. It needs another bearing, a distance arc, recon evidence, or a geographic constraint to select a point.

What if two bearings are almost parallel?

Treat the intersection as weak. Recheck both origins and directions, then seek an additional report from a different angle instead of firing from a visually precise but unstable crossing.

Is the spotter-to-target range the firing range?

Only if the spotter and NEST occupy exactly the same position. Normally you must measure a new line from the current NEST to the triangulated target.