Unlocking Ying's Full Potential in Rainbow Six Siege
Ying, known by her codename “Firefly,” is one of the most tactical and versatile Attackers in Tom Clancy’s Rainbow Six Siege. She specializes in area denial and crowd control using her signature gadget, the Candela. Introduced in Operation Blood Orchid, Ying combines precision, adaptability, and crowd management to create openings for her team during assaults.
This guide explains Ying’s story, her role in gameplay, how her Candelas function, and how players can make the most of her skills. Learn about Ying in Rainbow Six Siege, her abilities, gameplay strategies, and best uses. Maximize your performance with this operator.
Biography of Ying in Rainbow Six Siege
Siu Mei Lin, codenamed Ying, was born in Hong Kong’s Central district. Her mother worked for the government, and she grew up surrounded by serious discussions. By age ten, she found this world dull and often wandered the city to explore on her own. After finishing secondary school, she trained as a close protection operative, mastering short-range combat and explosive entry tactics.
Her operational history includes cooperation with global forces. She once clashed with the Spetsnaz Operator Fuze during Operation High Sun and later worked alongside Echo from Japan’s Special Assault Team, with whom she had a brief romantic relationship.
Seeking to broaden her expertise, Ying trained with Israel’s Caracal Battalion, a female-exclusive unit, where she mastered combat driving and firearms. Later, she joined the Hong Kong Police Force, eventually applying to the elite SDU: Flying Tigers. Her exceptional skill with flash-based weapons earned her the codename “Ying,” meaning Firefly.
In 2017, Rainbow recruited her for her ability to lead high-risk missions in dense urban settings while minimizing civilian casualties.
Psychological Profile

Ying’s calm and friendly manner makes her easy to trust. Teammates often feel secure under her leadership. However, she shows signs of post-traumatic stress disorder linked to a past car accident. She tends to drive aggressively in the field, possibly as a way to maintain control and cope with stress.
Her superiors describe her as precise and adaptable. She can change strategies quickly, especially when executing fast tactical movements such as driving or breaching. Despite her serious demeanor, she has an adventurous streak and enjoys discovering new places—often by riding public transport and exploring at random stops.
Dr. Harishva “Harry” Pandey, Rainbow’s director, notes that Ying values structure but also seeks excitement. She constantly balances discipline with curiosity, a mix that defines her character both on and off the field.
Gameplay Description
Operator Role
Ying is a medium-health Attacker who excels at creating confusion among defenders. She specializes in flash-based crowd control, making her a strong pick for entry fragging or area clearing.
Her goal is to disorient enemies, making it easier for her team to secure rooms or eliminate targets. While she doesn’t rely on brute force, her effectiveness depends on timing and map awareness.
Loadout
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Primary Weapons: T-95 LSW (light machine gun) or SIX12 (shotgun)
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Secondary Weapons: Q-929 handgun or Reaper MK2 machine pistol
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Gadgets: Smoke Grenades or Hard Breach Charges
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Ability: Candela Cluster Flash Device (x4)
Her T-95 LSW provides steady control in mid-range firefights, while the SIX12 offers close-quarters stopping power. The choice depends on the map and attack plan.
The Candela Device

Function and Deployment
The Candela is Ying’s signature tool. It releases a cluster of flash charges that blind and deafen anyone caught in its range. The device can either be thrown like a grenade or mounted on breakable surfaces.
When thrown, it rolls along the ground and detonates after a short fuse. If attached to a soft wall or floor, it fires multiple flash charges onto the opposite side. The timing of the detonation can be adjusted by holding the device before release—up to three seconds of “cooking” time.
Each Candela emits six flashes in quick succession, covering a wide area. The closer a target is, the longer they remain blinded. While this gives Ying’s team a significant advantage, the Candelas can be intercepted or destroyed by defensive gadgets.
Immunity and Limitations
Ying wears specialized electronic glasses that automatically activate when she deploys her Candelas, making her immune to her own flashes. However, her teammates are still vulnerable, and poor placement can disorient allies.
The glasses are not jammed by Mute’s disruptors but can be disabled by Tubarão’s Zoto gas. Solis’s electronic sensor can detect them, and gadgets like Jäger’s ADS or Wamai’s Mag-NET can neutralize Candelas before they detonate.
Synergies and Counters

Team Synergies
Ying works best with teammates who can neutralize or remove defensive gadgets. Operators such as Thatcher, Twitch, IQ, Brava, Kali, and Flores are ideal partners. They can clear devices that would otherwise destroy or intercept her Candelas.
Fuze pairs well with Ying because his Cluster Charge complements her disorienting flashes. Capitão also synergizes effectively by combining his smoke and asphyxiating bolts with Ying’s Candelas for multi-layered crowd control.
Counters
Ying’s main weaknesses are gadget-based counters. Jäger’s ADS can shoot down Candelas, while Wamai’s Mag-NET can pull them away before detonation. Bandit’s shock wires destroy them on contact, and Warden’s smart glasses negate the flash effect entirely.
Barbed wire slows down rolling Candelas, making them easier to destroy, and explosive damage can eliminate them before they activate. Precision and timing are essential for effective use.
Personality and Traits
Ying balances confidence with precision. Her quote, “So little time, so much asskicking,” captures her straightforward attitude. She approaches missions with a calm focus, calculating risk while staying flexible.
Her interest in exploration shows a curious side, contrasting with her disciplined professional life. This mix of control and spontaneity defines her both as a soldier and as a person.
Trivia and Facts

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“Ying” (螢) means Firefly in Chinese.
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“Candela” is a scientific term for measuring luminous intensity.
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Despite being part of the Outbreak event, she had no unique voice lines.
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Her in-game date of birth was once listed as 1983 but was later removed.
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She trained in Wing Chun, a Chinese martial art known for speed and efficiency.
Final Thoughts
Ying in Rainbow Six Siege represents precision and adaptability. Her Candela device can shift the momentum of a fight when used correctly. She’s most effective when paired with teammates who understand her timing and playstyle.
Her story, marked by discipline, courage, and curiosity, mirrors her role in the game. She’s not just a tactical Operator—she’s a calculated professional who thrives on unpredictability. For players who value coordination and timing, Ying remains one of the most rewarding Attackers to master.
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