Best Modern Warfare 4 Weapons & Loadouts for Launch: The Beta Meta, Ranked (2026)

Call of Duty: Modern Warfare 4 launches October 23, 2026, and the single most-searched question after "is it out yet" is always the same: what should I actually run? The good news is we don't have to guess blind — the two open beta weekends in late August gave everyone a real look at the launch arsenal, the new Apex Attachment system, and which guns already feel a tier above the rest. Here's the beta meta, ranked, plus the loadouts worth building first on launch night — with a clear line between what's confirmed and what's still an educated read.

Quick answer (TL;DR)

• The beta showed 22 of the 33 launch weapons. Activision's official beta weapons guide confirms MW4 ships with 33 weapons across nine classes; the beta exposed 22 of them, so the launch meta will shift once the remaining guns unlock.
• Best SMG (beta): ISO Nightshade. It edged out the PPSh-41 as the strongest close-quarters gun across both weekends — the go-to for aggressive, objective-style play.
• Best all-round AR (beta): the M4, with the Kastov 762 as the higher-damage, slower-handling alternative for mid-to-long lanes. Both are early unlocks, so you can run them from level one.
• Everything is beta data, not launch law. Weapon balance, TTK and attachment tuning routinely change between a CoD beta and its day-one patch. Treat these as your starting loadouts, not a locked launch tier list.
• Bottom line: load an M4 or Kastov for range and an ISO Nightshade for close range, level them early to unlock their Apex Attachments, and you'll be competitive from the first match — while everyone else is still experimenting.

Now the detail, split cleanly between what Activision has CONFIRMED and what's a beta-based read.

What weapons are in Modern Warfare 4? (Confirmed)

Straight from Activision's official beta weapons guide: MW4 launches with 33 weapons across nine classes, and the beta let players "unlock and wield up to 22 of the 33 weapons available at launch." That's a confirmed fact, not a leak — the beta arsenal broke down like this:

Class	Beta weapons
Assault Rifles	Han 86, M4, Hyeon Burst, Kastov 762, Patriot XMR, Axion*
SMGs	ISO Nightshade, PPSh-41, X-58 Nyx, Wz. 55 Striga*
Shotgun	Rezi 12
LMGs	FiNN LMG, Type 73
Marksman Rifles	MAR-9, Oris 8.6
Sniper Rifles	KG-7 Vulcan, Signal .50
Pistols	Karit P68, .50 GS, Sang 9mm*
Launcher	PILA
Melee	Combat Knife

*The Axion (AR) and Sang 9mm (pistol) were Default-Loadout-only and the Wz. 55 Striga was campaign-only, so they had no Gunsmith or Apex Attachment access in the beta.

The headline mechanic is the Apex Attachment system: Activision confirms that every beta weapon except Default-Loadout guns, Launchers and the Combat Knife supports it, "unlocking specialized modifications as you level up each weapon." In practice that means the value of a gun isn't just its base stats — it's what its Apex Attachment does once you grind it out. That's the single biggest reason to commit to a couple of guns early rather than spreading XP thin.

Which guns were the best in the MW4 beta?

Here's where confirmed fact hands off to a beta-based read. Activision doesn't publish a "meta tier list," so the rankings below are drawn from how the guns performed across the two beta weekends and the consensus of hands-on coverage — not from any official balance statement. Expect movement at launch.

Best SMG: ISO Nightshade

The ISO Nightshade was the standout close-range gun. As Polygon put it after the first weekend, "there were only two SMGs in the first Modern Warfare 4 beta weekend, and while both were strong, the ISO Nightshade pipped the PPSh-41 to the post." It pairs a fast time-to-kill up close with manageable handling, which is exactly what you want on the tighter three-lane maps. The PPSh-41 remains a genuine alternative if you value raw rate of fire and a bigger magazine over control.

Best assault rifle: M4 (with the Kastov 762 right behind)

For the mid-range fights that decide most objective modes, the M4 was the safest pick — a forgiving recoil profile and enough range to trade with anything at a lane's length, and it unlocks early. The Kastov 762 is the trade-up: more damage per shot and better long-range reach, at the cost of slower handling and a punchier kick. If you like holding angles, run the Kastov; if you like moving, run the M4.

The rest of the board

• LMGs (FiNN LMG, Type 73) rewarded map-control and Ground War-style play more than run-and-gun.
• Marksman/Sniper rifles were map-dependent — strong on the larger maps, dead weight on the small ones.
• Rezi 12 shotgun was the classic close-quarters panic button, situational but nasty on objective chokes.

What are the best MW4 loadouts to run first?

You don't need a spreadsheet on launch night — you need one range gun and one close-range gun you can level fast. Two starter loadouts cover almost every mode:

• The all-rounder: M4 (range) + ISO Nightshade (close) + PILA or a pistol secondary. This is the "never wrong" pairing — an AR for lanes, an SMG for pushing objectives, and you're leveling the two most useful guns simultaneously.
• The aggressor: ISO Nightshade primary + Kastov 762 as your "when I need reach" swap. Built for Domination/Hardpoint pushers who live in close-quarters but occasionally get punished across a map.

The through-line: pick two guns and commit. Because of the Apex Attachment system, a fully-leveled M4 is worth far more than three half-leveled ARs. The fastest way to a competitive loadout is concentrated weapon XP, which is why a lot of players plan their fastest way to level weapons and unlock attachments before launch rather than after.

Will the launch meta match the beta?

Almost certainly not exactly — and that's the honest caveat. Two things reliably change between a CoD beta and its live game: the 11 weapons that weren't in the beta (33 at launch minus 22 in the beta) will reshuffle the tier list the moment they unlock, and Activision routinely ships a day-one balance pass that nerfs whatever dominated the beta. Any "confirmed launch meta" tier list you see right now is speculation dressed as fact.

What is safe: the M4, Kastov and ISO Nightshade are early unlocks that were strong in the beta and will still be perfectly viable on day one, even if they're no longer the outright best. Start there, then adjust once the full arsenal and the launch patch land. For the bigger picture on what's actually new this year, our MW4 vs MW3: what's changing breakdown covers the systems shift, and the full launch arsenal lists every gun you'll be chasing.

How do you get a competitive loadout fast at launch?

The first two weeks of any Call of Duty are the sweatiest lobbies of the year — everyone resets to zero together, skill-based matchmaking is at its harshest, and you're grinding weapon XP against players doing the same. The problem isn't which gun to run; it's the hours of grind to unlock its attachments while getting stomped in full-SBMM lobbies.

That's the exact gap our MW4 services close. If you'd rather start the season with your best guns already maxed instead of grinding them the hard way, they're live and pre-orderable now:

Want your launch loadout ready to go on day one? Level the meta guns and skip the sweaty early grind:

• MW4 Weapon Leveling — max the M4, Kastov, ISO Nightshade and unlock every attachment, including Apex Attachments, on your account.
• MW4 Bot Lobbies — grind weapon XP, camos and challenges away from full-SBMM crossplay lobbies, the fastest low-stress way to level.
• MW4 Account Leveling — push military rank and prestige so your unlocks open up faster.
• MW4 Mastery Camo Unlock — take your maxed guns straight to the mastery camos.

FAQ

What is the best weapon in Modern Warfare 4? Based on the open beta, the ISO Nightshade was the strongest SMG and the M4 the most reliable all-round assault rifle. This is a beta-based read, not an official ranking — expect the launch tier list to shift once the remaining weapons unlock and Activision ships its day-one balance patch.

What is the best AR in MW4? The M4 was the safest assault rifle in the beta thanks to its forgiving recoil and solid range, with the Kastov 762 as a higher-damage, slower-handling alternative for longer lanes. Both unlock early, so you can run them from your first matches.

How many weapons does Modern Warfare 4 have? Activision's official beta weapons guide confirms 33 weapons across nine classes at launch. The open beta exposed 22 of those 33, which is why the launch meta will look different from the beta once the rest are available.

What is the Apex Attachment system? It's MW4's new per-weapon unlock: leveling a weapon unlocks a specialized "Apex Attachment" modification. Every beta weapon supported it except Default-Loadout guns, Launchers and the Combat Knife — which is why concentrating weapon XP on a couple of guns pays off far more than spreading it thin.

Should I trust MW4 beta tier lists for launch? Use them as a starting point, not gospel. CoD betas almost always get a day-one balance pass, and MW4 launches with 11 weapons that weren't in the beta at all. The M4, Kastov 762 and ISO Nightshade are safe early picks; the exact "best" gun will settle in the first week or two of live play.

What loadout should I run first in MW4? Pair one range gun and one close-range gun: the M4 (or Kastov 762) for lanes and the ISO Nightshade for objectives. Level both early to unlock their Apex Attachments rather than sampling every weapon — concentrated weapon XP gets you a competitive build fastest.