The June 18 XDefiant patch notes (Y1S0.4) have rolled out, finally bringing major alterations to the Weapon Mastery system. Some notable changes include speeding up the process of unlocking weapon attachments and increasing the Weapon Mastery level requirements. Also included are some minor tweaks to weapons and factions, as well as crash fixes. Check out the full XDefiant Y1S0.4 patch notes below.June 18 XDefiant Patch Notes (Y1S0.4)Fans who are looking forward to the Weapon Mastery changes should check out the recent XDefiant patch notes:GameplaySped up the process of unlocking weapon attachments by lowering the amount of XP needed to level up your primary weapon, from 3,500 to 3,000, and your secondary weapon, from 1,500 to 1,000.To counterbalance this speedier access to performance-enhancing attachments--and provide a greater challenge to the community--Weapon Mastery level requirements have increased. However, any player who has already unlocked Bronze/Silver/Gold skins will get to keep them.NetcodeImproved how quickly your health reacts when being shot, which should reduce the feeling of being shot behind walls.WeaponsPlayers wielding the MDR while strutting around in the Firestorm skin were experiencing an abnormal level of recoil, which has been reset to normal recoil.FactionsRestored the decorum of lying down when dead to players who previously remained on their feet after dying while under the influence of Libertad's Medico Supremo ultra.MiscellaneousAdditional crash fixes.Check out these XDefiant news and updates:XDefiant review: Ubisoft's reply to Call of Duty"I HATE Escort": XDefiant player expresses frustrations with game mode but the community disagreesXDefiant to refund XCoin for eligible Elite and Ultimate Founder's Pack buyers