Combat Telemetry

Overview

Combat Telemetry is the event currency of Arms Week, earned by completing activities with the weapon archetype featured that week. The Prototype Tuning calibration quests give 60 in total, each daily challenge 10 and the weekly challenge 90, and Portal activities award more. Guides consider Solo Ops in Caldera the best farm, at roughly 25 every three minutes by one guide's estimate.

Use

Spend it with Ada-1 at the Shooting Range. In the 2025 Hand Cannon edition, Arms Week engrams cost 25 Combat Telemetry and weapon focusing 25 to 30 depending on the weapon. In the January 2026 Bow edition, reissued weapons cost 25 and Gizmo Weft cost 35, with an Arms Week Event Weapons Engram included. Prices change between events, so check Ada-1's workbench. Bungie fixed a January 2026 issue that stopped Ada-1 accepting the currency.