Rocket Launcher Telemetry
From Destinypedia, the Destiny wiki
When used, it increases experience gained by upgradable Rocket Launchers for 30 minutes. Five Telemetries were able to be purchased from Xûr for one Strange Coin. Additionally, they were able to be gained by dismantling high-level weapons and armor.It was later replaced by Heavy Telemetry to increase the experience gained for all Heavy Weapons.
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