Call of Duty: Black Ops 4's Blackout battle royale mode is full of different weapons and attachments, so it can sometimes be hard to know which are the best to use in certain situations.
In terms of ballistic guns, there is a total of 27 different options to choose from, including six assault rifles, six submachine guns, three tactical rifles, three light machine guns, four sniper rifles, three pistols, and two shotguns.
In order to help players narrow down this list of choices to the best of the best, Call of Duty YouTuber and expert 'TheXclusiveAce' has published a video in which he breaks down which are the best weapon-attachment combinations in the game.
He breaks down the weapon pool into three tiers - high, medium, and low - and he characterizes items from each tier as having priority in his inventory over items over lower tiers.
He describes high tier items as ones players should always strive to have, medium tier items as ones that get the job done but fall short against stronger opposition, and lower tier items as being way too situational and limited in their use.
In the top tier, he includes the ABR 223 tactical rifle, the KN-57, Maddox, SWAT RFT, ICR-7 assault rifles, Paladin and Koshka sniper rifles, and the Spitfire and Saug 9mm SMGs, although he does note that he likes to use SMGs as secondary weapons in compliment to the others.
His mid-tier choices are the Rampart 17 and VAPR-XKG assault rifles, Outlaw and SDM sniper rifles, MX-9, Cordite, and GKS SMG secondaries, the MOG-12 shotgun, and the Zweihander, VKM 750, and Hades light machine guns.
He then moves on to the lowest tier of weapons, or ones that he recommends players to generally avoid and not pick them up unless it's the beginning of the game and they need a weapon.
This list includes the Swordfish and Auger tactical rifles, Essex Zombies assault rifle, Titan LMG, SG-12 shotgun, and all of the pistols.
He then goes into the attachments, which he categorizes into the high and medium tiers based on their effectiveness and usability.
His top tier of attachments includes: extended barrel, foregrip, stock, extended mag, reflex, elo, 2x sight, and sniper scope. The remaining attachments then make up the middle tier: suppressor, grip, laser sight, and fast/hybrid mag.
He doesn't have a lower tier of attachments since equipping any to a weapon only improves the gun and does not have any drawback or negative effect.