Modern Warfare 4 integrates with Warzone for Season 1, adding MW4’s full weapon pool, attachments, and other new gear into battle royale. The big update also overhauls Warzone’s perk system, including the introduction of the powerful new “Elite” perks. In this guide, we’ll explain how perks work for this new year of Warzone and include some recommended picks for your next match. How perks work in Warzone for MW4 For Modern Warfare 4, there are a total of 18 perks…