Call of Duty Warzone received a list of new weapons in Season 5, but the best M4 loadout remains one of the most popular choices in the game. It is a flexible weapon with a beginner-friendly recoil kick and a respectable damage output that can be enhanced with a few tweaks in the build. The M4’s ability shines the most in medium and some long-range gunfights. However, it does not have close-quarter combat capabilities.Warzone (WZ) can put squads in dangerous scenarios where your loadout will become the first and last line of defense. This is why you must build a class that can suit your playstyle and help you dominate the online lobby. Fortunately, the M4 is a flexible weapon that can be engineered for different situations.This article will highlight the best M4 loadout in Warzone Season 5.Note: This article is subjective and reflects the writer's opinions.Best M4 loadout attachments in Warzone Season 5Here is a list of all the attachments you can use to build the best M4 loadout in Warzone.Recommended build:Muzzle: VT-7 Spiritfire SuppressorBarrel: Hightower 20” BarrelOptic: Corio Eagleseye 2.5xUnderbarrel: Agent GripMagazine: 60 Round MagM4 Assault Rifle build (Image via YouTube/@Ryda)The VT-7 Spiritfire Suppressor muzzle increases recoil control, bullet velocity, and damage range while keeping you off the radar during gunfights.The Hightower 20” barrel attachment increases bullet velocity, bullet range, recoil control, and hip fire accuracy.The Corio Eagleseye 2.5x optic is excellent for this build as it provides a clear zoomed image in Aim Down Sight (ADS) mode.The Agent Grip underbarrel increases aiming idle sway and hip fire accuracy.The 60-round extended magazine is important to have in the battle royale for simultaneous gunfights.Read more: Every weapon buff and nerf in Warzone Season 5Best M4 class setup and perks in WarzoneM4 weapon (Image via Activision)Here are all the WZ equipment and perks that you can put in your loadout to make the most out of the M4 in the battle royale.Perk package:Perk Slot 1: EODPerk Slot 2: Double TimePerk Slot 3: Quick FixPerk Slot 4: High AlertEquipment:Field upgrade: Munitions BoxTactical: Smoke GrenadeLethal: Throwing KnivesThe M4 is one of the most reliable weapons and can be used to eliminate entire squads at a time. It benefits from a class that can increase its recoil control, damage output, and movement speed.The High Alert perk provides you with warnings if spotted by enemies outside your visible range. The EOD and Quick Fix perks bolster you against non-killstreak explosives and trigger quick healing whenever taking down an enemy. The Double Time perk increases mobility with higher tactical sprint duration for quick repositioning.Also read: Warzone Season 5 patch notesHow to unlock M4 in Warzone?The M4 is unlocked by default if you already played Modern Warfare 2. But if you started playing the game recently, you must reach level 25 on your account and complete the necessary Armory Unlock challenges to get your hands on it.Best secondary to M4 in WarzoneThe M4 can be paired with any submachine gun (SMG) like the Striker to cover all the close-range gunfights.Be sure to follow Sportskeeda for more WZ weapon build guides.Also, check out the following Call of Duty articles of Sportskeeda:MW3 and Warzone Season 5 Week 1 challengesAll Season 5 Prestige rewards in MW3 and WarzoneWarzone and MW3 Season 5 BlackCell Battle PassHow to unlock Cody Rhodes in Warzone and MW3How to unlock Rey Mysterio in Warzone and MW3