Rainbow Six Siege weapons: tiers and choosing for your role

Weapon selection in Rainbow Six Siege begins with the operator's job. A squad may need reinforced-wall access, information or control of a passage; a comfortable rifle helps perform that work but does not replace it. A ranking is therefore more useful alongside a round plan than as an instruction to choose only its top row.

This guide covers 36 weapon models, separate attack and defense options, nine main candidates and Y11S3 changes. Tiers are editorial judgments about choosing equipment for an ordinary team round. They are neither official win statistics nor a claim that adjacent placements decide every engagement.

The seasonal scope follows published Operation Split Fire material and Y11S3.2 notes. Numbers in old tables cannot automatically be treated as active: damage, recoil, magazines and attachment access change separately. Establish the role, then test the selected build on your platform and at your working distance.

How to use the ranking

S identifies a candidate to compare first within the required role. A is a complete alternative to choose around familiarity and your plan. B needs a more specific job or additional practice; C here means stricter selection conditions rather than an inability to win rounds.

Test a short burst, reticle recovery and transfer to another target. Repeat after moving and from ordinary cover. Controlling stationary wall fire helps you become acquainted with a gun but does not reproduce an opponent appearing or the need to return to safety.

Separate primary and secondary weapons. SMG-11 and SPSMG9 cannot be assessed simply as substitutes for an assault rifle: the operator's whole available kit matters. The overall list also does not authorize every character to carry every gun.

The overall table: every model

A model appearing in C is no reason to lose an ability the squad needs. If you consistently perform your job with UMP45, changing operators for an S label may weaken the overall plan. Compare role execution rather than only personal elimination totals.

What actually changed in Y11S3

These are published balance changes rather than universal damage on every hit. For example, 35 damage is enough for three hits against a hypothetical 100 HP target only if each hit retains its full damage. That arithmetic does not establish an identical hit count against every target at every distance.

Noor received ALDA 5.56 and Commando 9 as primary options. That expands available kits, but Horus Lance remains a separate tool. Ubisoft's Y11S3.2 notes also added Glaive-12 as a Valkyrie secondary: an operator loadout update is not equivalent to changing damage across an entire weapon class.

Defense: compare the line and the retreat

P10 Roni appears higher in the defense table than in the overall comparison because the task is narrower here. Its characteristics have not secretly changed. Separately select the primary gun, the backup response and where you intend to hold opponents.

ALDA 5.56: a prepared hold

ALDA 5.56 in Noor's published loadout; the image does not establish current numerical stats.

In Maestro’s loadout, ALDA 5.56 is the primary light machine gun and ACS12 is the alternative shotgun. Choosing ALDA retains an LMG for holding a firing line after using Evil Eye. The camera itself can observe through smoke, but that is not a property of ALDA’s sight: obtain information through the device, then return to the weapon and assess the firing line.

Evil Eye has a separate vulnerable phase: when it opens to fire its laser, its core is exposed to damage. Avoid remaining on the camera when primary-weapon fire is needed. Noor carries the same ALDA in a different kit with Horus Lance; compare the transition between device and LMG rather than treating the two operators’ roles as identical.

T-5 SMG: controlling a repeated peek

The in-game T-5 description emphasizes a lightweight SMG with a high rate of fire. Use that as the starting point for a short, repeatable engagement: the target is already in your sights, firing stops as you return to cover, then you check readiness for the next peek. When comparing it with MP7, record both hits and the magazine remaining after an engagement of equal duration. Holding the trigger longer spends ammunition whether or not you keep the target in your sights.

For Lesion, T-5 SMG occupies the primary submachine-gun slot; the alternative is the SIX12 SD shotgun. Choosing T-5 therefore gives up a shotgun in the primary slot rather than merely swapping one comfortable automatic weapon for another. Compare whether this primary weapon type suits the line you must hold after placing Gu mines.

Gu injures opponents and limits their speed. T-5’s practical task is to take the follow-up gunfight while the opponent deals with the mine. The mine does not make hits automatic: prepare the weapon’s line and assess whether it offers a safe engagement against the slowed target.

MP7: close contact without an unnecessary delay

The in-game menu describes MP7 as a close-to-mid-range SMG with high penetration. That calls for a test beyond point-blank fire: assess sideways drift and short-burst hits at the expected approach distance. When shooting through an obstacle, check its material and the available line separately. End the peek before the magazine remaining forces you to reload under return fire.

For Bandit, MP7 is the primary submachine gun and M870 is the alternative shotgun. Choosing MP7 avoids building the firing plan around a primary shotgun. That distinction matters for a defender who must work with Shock Wire and then return to watching an approach.

Shock Wire electrifies surfaces and helps deny key attacking entry points. Separate the cycle: device work at the protected surface, a return to MP7, then coverage of a possible bypass. Carrying a submachine gun does not itself let you operate the device and fire simultaneously.

Vector .45 ACP: a brief peek from cover

For Mira, Vector .45 ACP is the primary submachine gun; ITA12L is the shotgun alternative. Her published kit also includes the secondary ITA12S shotgun. To retain Vector for gunfights, compare the combination with ITA12S rather than treating a primary shotgun as the only way to bring that weapon type.

Black Mirror provides one-way observation, but ejecting its glass creates an opening for both sides. Before doing that, decide where Vector will fire from and who covers the adjacent direction. Choosing the submachine gun does not turn the opened window into safe cover: the geometry of the gunfight itself changes.

SMG-11: part of a kit rather than a guarantee

In Mute’s published kit, SMG-11 is a secondary machine pistol, with the P226 Mk 25 handgun as its alternative. The primary slot separately offers MP5K or the M590A1 shotgun. Assess SMG-11 as part of that pair: choosing M590A1 gives you a primary shotgun and a separate automatic secondary.

Practise the specific transition: place Signal Disruptor on the floor, prepare the required weapon from the pair, then take the selected line. If the shotgun has served the immediate task, switch deliberately to SMG-11. If MP5K is your primary instead, decide why you want a second automatic weapon rather than P226 instead of mechanically copying a shotgun kit.

Attack: the weapon must advance the round objective

AK-12: the main advancing line

The in-game description positions AK-12 at medium range. For this rifle, separate the first-hit test from sustained firing: after the first engagement, return the reticle to the line, then repeat a short burst at a second target. This lets you assess control and whether enough ammunition remains to protect the passage after using S.E.L.M.A. A single long spray at a stationary wall does not replace that exercise.

For Ace, AK-12 is the primary assault rifle, while M1014 offers a shotgun alternative. Choosing AK-12 means planning a rifle firing line after S.E.L.M.A. rather than assessing the gun separately from breaching a reinforcement. S.E.L.M.A. itself uses hydraulic pressure to break through breakable and reinforced surfaces.

On a wall, the device deploys downwards when space allows, so the opening develops during the charge’s work. Decide beforehand when to return to AK-12 and which direction the resulting breach will expose. Compare holding that line with a rifle against the task for which you might choose M1014; every breaching plan need not use the same primary.

C8-SFW: peeking alongside a destruction plan

Buck’s C8-SFW links the primary assault rifle with the Skeleton Key under-barrel shotgun. These are two parts of the kit’s workflow: open a soft obstacle with the shotgun, then return to the rifle to engage through the resulting line. Practise that switch rather than only firing from prepared ADS. In Buck’s published loadout, the alternative to C8-SFW is the CAMRS marksman rifle: choose between these primary weapon types for your shooting approach while retaining a plan for Skeleton Key.

Avoid treating a new opening as a safe stationary shooting position. Examine the opposite line, identify cover and limit the peek's duration. This is the cycle in which weapon control is needed.

SC3000K: contact after gathering information

For Zero, SC3000K is an assault rifle and MP7 is the alternative primary submachine gun. This compares two different primary weapon types on the same operator. Argus supplies a separate preparation phase: its camera can lodge in a breakable or reinforced surface and observe either side.

The camera’s laser can act on elements of the defensive setup; SC3000K itself does not perform that action. Finish the observation or device-removal task, then return to the rifle for the firing line. Compare that cycle with the MP7 option: choose for the required engagement after camera work rather than crediting the rifle with seeing through a wall.

When comparing it with MP7, test SC3000K’s sideways drift separately during a sustained burst. In the published Y11S2.1 update dated June 23, 2026, Ubisoft smoothed its horizontal recoil at every burst stage for mouse and keyboard and controller. Start by testing SC3000K on a line where you need to track the target beyond the first shots, then repeat the same engagement with MP7. Compare hits and the ammunition remaining before a second target: improving the rifle’s recoil does not by itself prove superiority in every fight.

R4-C: entry with support available

For R4-C, consider how much of the magazine goes into prefiring angles. In the Y9S3 notes dated August 26, 2024, Ubisoft reduced its magazine from 30 to 25 rounds and explicitly linked the change to fewer engagements before reloading and less sustained prefiring. This is a dated balancing example rather than a Y11S3 magazine measurement. In practice, compare R4-C with G36C, the other assault rifle in Ash’s loadout: how many rounds checking a line consumes, whether the remainder supports another engagement, and where you can reload safely.

Avoid tying the choice to an old claim about available optics: the active version's kit needs its own check. Compare a comfortable sight, burst control and your ability to retain visibility along the required line after the first shots.

Why an old TTK table may mislead

The calculation starts with the number of required hits. If n identical shots eliminate a target and the rate is r rounds per minute, the ideal interval from the first to last is (n - 1) × 60 / r seconds. This is a mathematical model without engagement-start delay or misses.

A real comparison must match health, body part, distance, attachments and target state. Conversion from seconds to milliseconds must also remain consistent. Avoid mixing time from the first hit with time from pressing the button and entering ADS.

A competitor table labeled “1 Armor” does not prove a current result. Record a practical comparison through an identical exercise: hits, an incomplete burst, returning to cover and the ability to repeat contact. That reveals what you actually changed.

Common questions

Which gun is best overall?

For attack, begin comparisons with AK-12, C8-SFW, SC3000K and R4-C. For defense, start with the five profiled models. Then retain the option suited to the required operator and your plan; the ranking establishes no single winner across every role.

What should you choose for calmer control?

Start a comparison exercise with T-5 SMG and MP5K, then repeat it with a familiar model. Decide through your hits and reticle recovery rather than a promise of universally easy recoil.

Can you use C, and when should you change?

Yes. First assess whether the choice supports the role and preserves the squad's ability. Repeat the same practice after a seasonal change. Change the build when you understand a particular problem rather than after one unsuccessful round.

Are R4-C, SMG-12 and SPSMG9 still worth using?

R4-C remains an entry candidate with coordinated support. For SMG-12, account for Y11S3's reduced damage and resources rather than old expectations about long bursts. SPSMG9 gained damage, but the choice depends on the whole kit and engagement conditions. None of these changes removes the need for information, cover and the team objective.