Home Computer COD Warzone Jan 13 Update: DMR Nerfed Again, Stim Glitch Fixed (Full... ComputerSoftware COD Warzone Jan 13 Update: DMR Nerfed Again, Stim Glitch Fixed (Full Patch Notes) By admin - January 14, 2021 10 0 Facebook Twitter Google+ Pinterest WhatsApp Raven Software published the complete “Call of Duty: Warzone” patch notes on their Twitter account via a TwitLonger. It showed DMR, Blueprints, and other weapon updates after fans criticize the weapons’ performances during the game.