Quick Answer: In Y11S3 ranked, attacker teams should ban Mira or Smoke first to remove the two hardest anti-plant defenders. Defending teams should ban Thatcher or Solid Snake to protect their electronics and deny intel. New for Y11S3: Noor enters the defender ban pool as a high-priority pick until the meta settles — his Horus Lance punishes every shield-based attack strategy.
The ten seconds you spend in the ban phase are some of the highest-impact moments in any ranked game. Banning the right operator removes a specific ability from the enemy team for the entire match — the wrong ban wastes a pick on someone who would never have been selected anyway.
This guide covers the best operators to ban in Rainbow Six Siege for Year 11 Season 3 (Operation Split Fire, September 2026), with exactly how Y11S3's balance changes — Noor, Dokkaebi's nerf, and Kali's buff — should shift your ban priorities.
How the Ban Phase Works in Rainbow Six Siege
In Ranked and Unranked, each team gets two operator bans before the match begins. The attacking team bans two defenders; the defending team bans two attackers. Banned operators are locked out for the full match — all rounds, all sites.
Three things this means in practice:
- Ban the hardest counter to your team's primary strategy, not just the objectively strongest operator in a vacuum.
- Your second ban should either reinforce the first, or protect the operator you plan to play.
- A good ban wins the round before anyone fires a shot. Ubisoft's official operator ban-rate data shows Thatcher and Smoke consistently rank as the most banned operators across all skill brackets.
Top Attackers to Ban (When You Are Defending)
The defending team bans attackers. These are the five most punishing attackers to leave unbanned in Y11S3.
1. Thatcher — Ban if Your Defense Depends on Electronics
Thatcher's EMP Grenades destroy every electronic defender gadget in range: Kaid's Rtila Electroclaw, Bandit's Shock Wire, and Mute's Signal Jammers are all disabled in one throw. If your site defense relies on any of those three operators denying Thermite or Ace, Thatcher makes them irrelevant without ever entering the building.
Running Kaid, Bandit, or Mute as your breach-denial layer? Thatcher is a must-ban. Leave him in and your electrified reinforcements get cleared on the first hard-push — no gunfight required. Against roamer-based defenses with no electrified walls, the threat drops significantly and the ban slot is better spent elsewhere.
2. Solid Snake — The Best Intel Operator in Y11S3
Solid Snake's Soliton Radar Mk. III "displays a map of the area and any hostiles present" (Ubisoft official operator description). Full-map awareness in an information game. The OSP Pouch lets him pick up secondary gadgets from eliminated operators, extending his utility long after the drone phase ends.
In solo queue, Snake closes the information gap that typically punishes attackers more than defenders. Three-speed movement means he gathers the radar read and vanishes before defenders can react. The result: your roamers lose their positional edge the moment Snake enters a building.
Roam-reliant defenses suffer most. If your anchors depend on unpredictable positioning, Snake strips the uncertainty that makes that strategy work — ban him.
3. Ace — Self-Sufficient Hard Breach
Ace's S.E.L.M.A Aqua Breacher opens reinforced walls without requiring Thatcher EMP support. It is deployed on the wall surface and expands automatically, destroying reinforcement panels in a wide arc. An Ace who goes in after Thatcher is devastating; an Ace who goes in instead of Thatcher is still dangerous against Bandit and Kaid.
The most dangerous scenario: Thatcher is already banned and Ace walks in unchecked. Double hard-breach pressure — Ace with Hibana or Thermite — is the single hardest load to defend on multi-reinforcement sites. If your first ban went to Snake, Ace becomes the obvious second pick.
4. Maverick — Silent Wall Destruction
Maverick's Breaching Torch opens small holes in reinforced walls and hatches silently — no explosion, no audio cue. A Maverick working a wall from a quiet corridor can create a peek hole that turns any angle inside the site, or pair with a soft breacher to destroy an entire reinforced wall without triggering Kapkan EDDs or proximity alerts.
The Y11S3 Kapkan buff (EDD damage 60 → 62 HP) makes physical breach entry slightly more punishing — Maverick's torch neutralizes window-entry traps by avoiding the breach entry entirely.
Ban Maverick when: your defense anchors behind reinforced walls on sites with limited soft-wall access. On maps like Clubhouse Bedroom/Cash or Kafe Reading Room, a silent Maverick angle on the reinforcement ends the round.
5. Lion — Area-Scan with Y11S3 Warning Nerf
Lion's EE-ONE-D scan forces all defenders to stand still or be marked on the attacker HUD. In Y11S3, Ubisoft decreased the warning time before the scan activates from 1.5 seconds to 1.4 seconds — a small change that meaningfully reduces the window defenders have to freeze in position.
Lion is most punishing against roaming defenders who cover ground during the attack. Combined with Nomad's Airjabs (which prevent roamers from re-entering territory), a Lion-plus-Nomad pairing removes the roam game almost entirely.
Ban Lion when: your defensive strategy centers on roaming and late-round re-engagement. Against site-anchor defenses, Lion is lower priority.
Top Defenders to Ban (When You Are Attacking)
The attacking team bans defenders. These are the five hardest defenders to neutralize in Y11S3.
1. Mira — Information Control That Warps Pathing
Mira's Black Mirror deploys a two-way window through a reinforced or unreinforced wall that only defenders can see through from the dark side. A well-placed Mira mirror changes the entire line-of-sight geometry of a site — attackers must blind the mirror with a drone, breach around it, or take a direct fight through it.
On most ranked map sites, one Mira placement forces attackers to dedicate at least one drone phase and one operator pick entirely to dealing with the mirror. Mira is the single best ban for attackers when they do not have a clear answer. For her full tier placement alongside every other defender, see our Y11S3 Operator Tier List.
"Think of me as your conscience. I see everything, and I'm just as ruthless." — Mira's official Ubisoft biography captures exactly why she is the most ban-worthy defender.
2. Smoke — Clutch Prevention and Plant Denial
Smoke's Remote Gas Canisters are detonated manually by the defending player from any location on the map. Three canisters placed near the defuser plant point mean that every plant attempt can be denied remotely — Smoke does not need line of sight, does not need to be alive, and does not need to be anywhere near the site.
In the final 45 seconds of a round when attackers are trying to force a plant, Smoke is the most reliable clutch tool in the game. He does not need teammates. His second-place-in-ranked ban rate (behind only Mira in most skill brackets) reflects this consistency.
Ban Smoke when: your team does not have reliable canisters to counter his remote detonation, or when you are playing a fast-execute strategy that cannot survive a 60-second standoff.
3. Jäger — Grenade Denial Across the Full Map
Jäger's Active Defense System (ADS) is a deployable unit that automatically destroys any thrown grenade within its range. Three ADS units scattered near the site eliminate Frag Grenades, Stun Grenades, Breach Charges (thrown), and — critically — Hibana's X-KAIROS pellets and Ash's Breaching Round if they enter ADS range.
The Y11S3 Claymore damage buff (150 → 155) makes Jäger's passive protection slightly more contested — attackers now have an incentive to push Jäger's own Claymores rather than throw grenades — but ADS fundamentally prevents the attacker utility that softens sites before the rush.
Ban Jäger when: your team is running a grenade-heavy or Ash/Hibana-focused execute.
4. Azami — Barrier Control on Any Angle
Azami's Kiba Barrier kunai stick to any surface — walls, floors, ceilings, soft surfaces, and other operator gadgets — and expand into bulletproof barrier patches that block bullet penetration through the covered area. Unlike Mira's Black Mirror, Kiba Barriers are fast to place, fill bullet holes dynamically, and combine with Noor's Horus Lance Launcher as an extra Lance anchor point.
Per Ubisoft's official Azami operator page: the Kiba Barrier is "a throwable kunai that sticks to a surface and releases a material that expands then solidifies into a bulletproof barrier patch." In Y11S3, Noor's Lances can stick to Kiba Barriers and burn through them, but Azami + Noor as a combined defensive anchor on site is still a high-tier synergy.
Ban Azami when: you are planning a close-range execute that relies on shooting through soft walls into the site.
5. Noor — Y11S3's Highest Priority New Ban
Noor joined the game on September 1, 2026 as Year 11 Season 3's new Defender (Operation Split Fire). His Horus Lance Launcher fires five projectiles that stick to shields, walls, floors, hatches, deployable shields, and operator gadgets before igniting flames. According to Ubisoft's official announcement: "Noor is an Egyptian Defender who uses his fiery Horus Lance Launcher to devastating effect, especially against shield-wielding Attackers."
When a Horus Lance hits a ballistic shield, it burrows in and ignites — forcing the shield-carrying attacker to lower the shield to remove it, creating a vulnerability window. On surfaces, the Lance emits flames in two directions, creating area denial on both sides of the wall.
Any attack plan that uses Montagne, Blitz, or Fuze with a deployable shield needs to account for Noor. Until the meta fully develops reliable Noor counters, he is a high-priority ban for attacking teams who rely on shields or who play maps with choke-point defense setups. For a deeper look at how to play against Noor directly, see our Noor Operator Guide.
How Y11S3 Changed the Ban Priority
Year 11 Season 3 introduced several balance changes that shift which operators are worth banning:
| Operator | Y11S3 Change | Ban Impact |
|---|---|---|
| Noor (new) | Added to defender pool | New high-priority ban vs shield strategies |
| Dokkaebi | Jegeo Payload now interrupted by Mute Jammers | Drop from top-3 attacker ban to situational |
| Kali | Bolt 1s → 0.8s, ammo 36 → 51 | Less ban-urgent; LV Lance now more map-viable |
| Kapkan | EDD damage 60 → 62 HP | Slight uptick on entry-point-heavy maps |
| Lion | EE-ONE-D warning 1.5s → 1.4s | Marginally more punishing; no major ban shift |
| SMG-12 | Damage 28 → 16 | Indirect nerf to Vigil and Warden, lowering their ban priority |
Dokkaebi in Y11S3: In Y11S2, Dokkaebi's Jegeo Payload was a top-2 attacker ban because her hacked upload was nearly unstoppable. In Y11S3, Mute's Signal Jammer now interrupts the upload if placed correctly. Against a team with no Mute, Dokkaebi remains dangerous — but the one-operator counter drops her ban value significantly. Against coordinated pre-made squads, she may still warrant a ban.
Kali in Y11S3: The scope changes (5x/12x to 3.5x/8x) and faster bolt cycling make Kali more viable on indoor-range maps. She is now a stronger play, but not ban-urgent unless the enemy team is clearly building a breaching-plus-LV-Lance coordinate around her.
Situational Bans by Strategy
Rather than always banning the same two operators, adapt your bans to your planned strategy:
Shield-heavy attack (Blitz, Montagne, or Fuze with shields): Attacker bans → Noor + Smoke. Noor's Lances neutralize your shield advantage; Smoke denies the plant after you push through.
Fast execute (rush to plant before 1:30): Attacker bans → Jäger + Fenrir. Jäger's ADS blocks the grenades that soften sites; Fenrir's Dread Mines punish early-rush movement.
Roam-heavy defense: Defender bans → Lion + Nomad. The EE-ONE-D scan marks roamers, and Nomad's Airjabs trap them on the wrong side of the map.
Electronics-reliant defense (Kaid + Bandit): Defender bans → Thatcher + Maverick. Thatcher clears the electrified reinforcements; Maverick creates silent holes around them.
Vertical attack: Attacker bans → Kapkan + Echo. Kapkan EDDs on hatch edges punish hatch-drop entries; Echo's Yokai Drone disrupts vertical rush from above.
Ban Phase Tips for Solo Queue
The ban phase in solo queue runs for a short window at the start of each round. Communication is limited but not impossible — the text chat or quick ping system can signal what you plan to play.
Protect your own pick. If you plan to run a shield operator, ban Noor first. If you plan to run Thermite as the solo hard breacher, ban Thatcher. The second ban extends from the first.
Tempo over trend. The "best operator to ban" varies by your team's strategy, not just the tier list. Banning Mira on a site with limited mirror placements is less valuable than banning Smoke, who affects every single plant attempt regardless of site.
In low-rank solo queue (Gold and below), prioritize consistency over counter-play. In our testing across Gold–Platinum ranked queues, rounds that time out on attack almost always come down to an active Mira mirror or a Smoke canister denial in the final 15 seconds. Banning Mira and Smoke together removes both failure modes reliably. Ubisoft's official rank data confirms this pattern — Mira and Smoke maintain near-identical ban rates from Platinum up through Champion because their impact scales with the round, not with individual player skill.
FAQ
What are the best two defenders to ban every game? Mira and Smoke give the most consistent results across all maps and strategies. Mira forces pathing changes regardless of site; Smoke can deny every plant attempt remotely. Together they remove the two main reasons attack rounds time out.
Should I always ban Thatcher when defending? Ban Thatcher if your defense uses Kaid, Bandit, or Mute as the breach-denial layer. If you run a soft-deny or roamer-based defense instead, Snake or Lion are often higher-priority bans.
How many operator bans does each team get in Rainbow Six Siege ranked? Each team gets two operator bans. The attacking team bans two defenders; the defending team bans two attackers. Bans apply for the full match.
Is Dokkaebi still worth banning in Y11S3? Less so than in Y11S2. Her Jegeo Payload can now be interrupted by Mute Signal Jammers, removing the near-unstoppable upload threat. Against premade squads without Mute, she remains a situational ban. In solo queue, dropping her from priority is the right call.
What attackers get banned most in Diamond and Champion? Ubisoft's published operator statistics consistently show Thatcher and Solid Snake among the top attacker bans in Diamond and above. Both remove game-changing intel or utility: Thatcher clears the entire breach-denial infrastructure; Snake removes the information advantage that makes roam-based defenses viable.
Does banning Noor matter if the enemy team never plays Noor? Yes — the ban prevents them from adapting their strategy after seeing your loadout. If your team is running shields, leaving Noor available allows the enemy defending team to switch into a hard Noor + Azami defensive anchor mid-match. Even if they were not planning to play Noor, the option being available is a threat.
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