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"I decide when to restrain and when to kill. Only the best calls the shots."
— Zofia

Zofia Bosak is an Attacking Operator featured in Tom Clancy's Rainbow Six Siege, introduced in the Operation White Noise expansion alongside Dokkaebi and Vigil.[1]


Zofia Bosak was born in Wrocław, Poland. She is the oldest daughter of Jan Bosak, former commander of the Polish Special Forces unit GROM. She is also the older sister of Elżbieta Bosak. Growing up, her father favored Zofia, causing a rift between them. Despite this, Zofia was highly protective of her sister.

Zofia attended her father's military school along with her sister. While attending, she was pressured to perform on every level – a burden her younger sister was not able to cope with. During a school trip to the Masurian Lake District, Zofia was prey to a disturbing prank that almost cost her life. While she played in the lake, three boys from her class took turns trying to drown her, just for 'fun'. This violent experience marked her with a deep mistrust of others. The following week, she had to sit beside her assailants in class. To deal with her growing anxiety, she decided to push her training further, and ensure she could rely on her skills for protection. Her father agreed to show her more ruthless techniques, given she would never question his methods.

The next morning, he led Zofia to a shooting range where he had leashed two stray dogs to a target post. He informed her that one of the two dogs was sick and that she had to end its suffering. He then took his pocket watch out and gave her two minutes to make a decision. This was meant to teach her the skills necessary to survive any peril, and withstand dangerous situations. Her father's strict military training and his pocket watch would haunt her for years. While there were moments when she wanted to rebel against him, she also found comfort in the simple, black-and-white form of validation his system provided.

When Zofia hit legal age, she enlisted in the army and passed the GROM selection tests with the highest possible scores. Among Zofia's most notable exploits is a rescue operation in Guatemala, codenamed Red Agatha. A disastrous tropical storm formed a sinkhole in the middle of the city, swallowing an entire neighborhood. Zofia was deployed to protect a team of engineers examining the perimeter. During a sudden landfall, she hitched a child over her back and ran as the ground disappeared from under her feet. The kid clung to her back and she gripped the edge with her bare hands for the next half hour as she hung over the abyss. After she was able to reach safety, Zofia single-handedly evacuated hundreds of civilians from the area. To reward her special ability to withstand hardships, Zofia received a medal and was promoted to Second Lieutenant. She also gained the respect of her commanding officers and peers.

Throughout her experiences, Zofia forged a second family overseas. to have more impact on the field, she learned to trust her squad mates with her life, reconsidering the cruel lesson from the incident at Lakeland. Far away from her father's brutal training, Zofia let down her walls, developing close ties for the first time. She met her now-husband during a rogue operation in Mali, where they both mistook each other for hostiles.

Challenged by her squad mates on the field, she discovered the true kind of specialist she wanted to become. At the peak of her career, she flew back to Poland for her wedding ceremony. While she intended the event to be private, her father turned it into a marked celebration, reuniting the clique of politicians who took power after the assassination of Poland’s president. Zofia was shocked to see two former suspects among the crowd, embraced warmly by her father. She left the party early, feigning illness. While investigating what she’d seen, Zofia discovered she was pregnant. Taking an exceptionally early maternity leave, at the family home, Zofia kept her pregnancy hidden from her father. He committed suicide in the months that followed, though the circumstances surrounding his death were suspicious.

The birth of her daughter Jana had a profound effect on Zofia, igniting her need to cocoon with her family – but Ela ignored all her attempts to reconcile. Zofia returned to the GROM soon after hearing Ela would pass the selection. Except for her attempts to reconnect with her sister, Zofia kept her distance with everyone else. Her squadron noticed this change and wondered if her recent obsession with her father's pocket watch was a remnant of grief or something more.

When Ela accepted the prestigious offer to join Rainbow in 2017, Zofia saw no reason to stay behind. Everything about the GROM now seemed to remind her of her father. She used her contacts to reach Six personally, who agreed to meet her in Geneva. Three months later, Zofia became an official member of Rainbow.[2]

In late 2020, Zofia was placed on Team Mira for the upcoming Six Invitational. In early 2021, Team Mira faced off against Team Ash in the first match of the Six Invitational. Despite the efforts of Team Ash, they were unable to defuse the bomb within the allotted time, winning the match for Team Mira.

Psychological Profile[]

Zofia has developed extensive skills beyond hand-to-hand combat and marksmanship, specifically survival, sabotage, target extraction, and field medicine. Driven to be the highest performing soldier in any given unit, Zofia is of singular focus in all of her operations. Zofia stands out as a lateral thinker with decisive, aggressive, operational experience and an impeccable track record both on and off the field.

  • Underwent thorough examination, but remains inconclusive. Perhaps too experienced at falsifying test results.
  • Significant divide between the two sisters.
    • Their father had a key role in it. His obvious favoritism towards Zofia is well-known.
  • When asked about their relationship growing up, Zofia kept her answers curt and non-committal.
  • And yet, very protective of Ela.
  • Refuses to discuss her father's suicide.[3]

Psychological Report[]

There are layers to Specialist Zofia "Zofia" Bosak and I've barely scratched the surface after a handful of meetings. So we'll take it slow. I've read her jacket —since her father was a public and powerful figure, it means that there are redactions even in her personal file. [...] She wasn't defensive in our meeting, but she was... distracted by my role. She didn't want to be "analyzed," which is exactly the response I received from her sister, Specialist Elżbieta "Ela" Bosak. [...]

Zofia neither likes discussing herself nor having anyone else discuss her life, especially her military husband and their daughter. She doesn't "do" small talk. This made the first twenty minutes of our meeting rather quiet. After offering some family details of my own, she did share a funny incident with her daughter's morning routine. Knowing how private she is, I want to honor her trust and not mention it here. [...]

She is conflicted between pride in her accomplishments and the sense that she was deprived of meaningful choices. When I said that the reports reflect someone exceptional, she laughed. She told me she often feels robotic, as if someone had programmed her and she's on autopilot. It will be vital to disrupt that sense of powerlessness. [...]

Zofia struggles with her father's death. She doesn't believe it was suicide and asked if I can recover his autopsy report. I'm not sure I have those kinds of connections, nor do I think it's necessarily a good idea. His absence already pervades her every thought and I'm not convinced that having an answer would bring her the closure she needs. I've encouraged her ongoing efforts to rebuild the relationship with her sister instead, and to cherish the close bonds she has with her teammates and her family. [...]

What strikes me most is that Zofia faces the unknown with complete equanimity. Whether it's due to her training or her upbringing I can't say. Undoubtedly, it's a valuable skill. Yet where there is ambivalence there can be no joy, and I find I wish more for her than that.

Dr. Harishva "Harry" Pandey, Director of Rainbow

Gameplay Description[]

A Medium Health Operator, Zofia has access to the KS79 LIFELINE, a double barrel launcher that can launch either impact grenades or concussion grenades.

  • Zofia's KS79 LIFELINE has two Impact and Concussion Grenades. The LIFELINE is set to Impact Grenades by default and can switch between ammunition types on the fly using the fire mode key.
  • The grenades are superposed, thus the LIFELINE requires no reloading process between shots.
  • The grenades have no projectile size; they can pass through openings that are as small as a bullet hole.
  • The Impact Grenades are much like normal Impact Grenades, dealing the same damage, type of destruction, and radius.
  • There is a small arc to the grenade's flight trajectory.
  • Concussion Grenades work like Ela's Grzmot Mines, causing visual and mobile disruption.
  • Concussion Grenades detonate upon a 3 meter proximity to an enemy. Otherwise, there is a delay before detonating. If they hit a surface, they will rebound and detonate.


  • Finka's Adrenal Surge can allow Zofia to recover from the Concussive Effects even faster than normal with the 70% shorter recovery time. The Surge can also override the effect if activated afterwards. These benefits also apply to fellow allies.


  • Jäger's ADS can take out Zofia's grenades if they haven't detonated.
  • Wamai's Mag-NETs can redirect both of her grenades, assuming he has two of them deployed. Otherwise, only one would detonate.


"Double barrel launcher that can fire both concussion and impact grenades."
— In-game description

On the rare occasion Zofia was home alone with her younger sister, she would teach Ela some advanced non-lethal techniques and introduced her to concussion grenades. Those rogue lessons were their secret and represented Zofia's shy attempts to help Ela, who was struggling during high school.

While her father’s training made Zofia most comfortable with hand-to-hand combat and precision shooting, she discovered in the GROM the true kind of specialist she wanted to be. Favoring aggressive strikes, she volunteered to test trial the KS79 LIFELINE, a double barrel grenade launcher originating from an Italian R&D program.

KS79 LIFELINE makes use of electronically triggered projectile technology that can fire both concussion and impact ammunition. Since multiple grenades are superposed in the gun barrel, reloading magazines are no longer necessary, resulting in unmatched efficiency. The concussion ammunition delivers a 170-decibel shockwave that impairs hearing and causes a dizzying effect. The impact ammunition bulldozes walls in an instant, so brace yourselves for an explosive assault.[1]

Device Evaluation[]

Operator: Specialist Zofia "Zofia" Bosak
Evaluation Lead: Specialist Tina Lin "Frost" Tsang with Specialist Jordan "Thermite" Trace

Mira asked Thermite to evaluate Specialist Bosak's KS79 LIFELINE projectiles and also to review the GRZMOT mines that her sister (Specialist Elżbieta "Ela" Bosak) uses. Since Ela's tests took longer than he was expecting I jumped in to help out with Zofia's Lifeline.

Both devices have similarities in the concussive impact rounds, but the deployment methods are different. The double-barreled launch is powerful and according to Thermite feels closer to Specialist Eliza "Ash" Cohen's breaching rounds. Tests regarding the impairing effects on hearing, vision, and movement are in the attached spreadsheet. Doc said he was interested in those. I also tested trajectory and deployment rates for the Lifeline and included those in the results.

Finally, Zofia's cooperation during this process was invaluable. While she wasn't on site, she consulted with us via vid-chat whenever we had questions. Because of that, we gathered more support data that we wouldn't otherwise have had. It made our task easier. So thanks, Zofia!

- Frost


Zofia's Quotes
Zofia Operator Video (International)
  • "To ja decyduję kiedy się powstrzymać, a kiedy zabić. Tylko najlepsi dyktują warunki."
  • "Actions speak louder than words."
  • "All that glitters is not gold."
  • "I'm not sure I care."
  • "Let the adults work."
  • "No risk, no reward."
  • "Remember the training."
  • "Save it."
  • "Say your prayers."
  • "This brings me no joy."
  • "You'll know if I see anything."
Sister Rivalry
  • "Do better Ela."
  • "Don't be so predictable."
  • "Don't make me chase you."
  • "Game on."
  • "Get your head in the game Ela."
  • "I always have the edge, Ela."
  • "I know it's you."
  • "I told you better, learn from this."
  • "I taught you better."
  • "I won't play nice Ela."
  • "I won't quit Ela."
  • "I'm not playing."
  • "I'm serious Ela."
  • "Just like old times."
  • "Running out of time Ela."
  • "Some things never change."
  • "Stop it, Ela."
  • "That's not good enough Ela."
  • "There's no place to hide, Ela."
  • "This is so you."
  • "This might teach you something."
  • "Watch your back, Ela."
  • "You are your own enemy, Ela."
  • "You can do better than this Ela."
  • "You can't run for me, Ela."
  • "You can't win Ela."
  • "You've lost your focus there."
Swapping to Impact Grenades
  • "Readying impact."
  • "Loading Filipinka."
  • "Impact grenade."
  • "Shell."
Using Impact Grenades
  • "Brace for impact."
  • "Brace for it."
  • "Cover your ears."
  • "I got you."
  • "Make room."
Swapping to Concussion Grenades
  • "Arming shock."
  • "Loading concussion."
  • "Loading thunder."
  • "Thunder's next."
  • "Shock."
Using Concussion Grenades
  • "Action time."
  • "Get out of here."
Firing a Grenade too Close
  • "Gówno."
  • "Cover me, reloading."
  • "Loading a new magazine."
  • "Reloading!"
  • "Swapping mags!"
Getting Hostage
  • "Hostage recovered."
  • "Hostage retrieved."
  • "Hostage secured."
  • "Recovered the hostage."
  • "Recovering the hostage."
  • "Secured the hostage."
  • "We have the hostage."
Moving Hostage
  • "Come on."
  • "Come on. let's go."
  • "Let's go."
  • "Run."
  • "Stay with me."
Dropping Hostage
  • "Czekaj."
  • "Don't move."
  • "Nie ruszaj się."
  • "Stay here."
  • "Stay put."


  • Zofia is, technically, the first (and so far only) operator in Siege to not have a call-sign, using her actual first name instead.
    • However, it should be noted that her sister's call-sign, "Ela" is an abbreviation of her own first name, Elżbieta.
  • Zofia is sometimes nicknamed "The Bosak Anchor". In the context of an individual or an object, an 'anchor' provides stability or confidence in an otherwise uncertain situation. This matches Zofia's own character with her own perseverance and determination when it comes to both her military and personal life, the latter of which being her attempts to reconnect with Ela.
  • The name used to occasionally describe Zofia's impact grenades, Filipinka, originate from an unofficial yet common name for the ET wz. 40 hand grenade. This grenade was used by the Armia Krajowa resistance movement during Poland's occupation by Nazi Germany in World War II. It was a cylindrical impact grenade, a profile that aptly describes Zofia's own impact grenades.
  • As noted in her sister's biography, her grandfather was a Cichociemny, an elite paratrooper of the exiled Polish Army during World War II. After being captured during the Warsaw Uprising in late 1944, he managed to escape and reach Wrocław, then named Breslau, only to endure a three-month-long siege.
  • Zofia has a unique line if she shoots one of her grenades too close to herself.
  • Killing Ela when playing as Zofia will award the "Sister Rivalry" bonus, adding 10 points to your score.
  • Zofia's date of birth was originally stated in-game as 1981, however this has since been removed.[4]
  • Prior to the Y5S4.3 Mid-Season Reinforcements patch, Zofia had an ability called Withstand. The ability allowed Zofia to pick herself back up when downed with only 5% of the baseline health.
  • Zofia took roughly 5 seconds to use Withstand, which was almost twice as long compared to Doc's revive with his Stim Pistol (2.75 seconds). Comparably, reviving a teammate takes approximately 4 seconds.
  • When activated, Zofia automatically pressed down on her wounds, thus her bleedout time was maximized even if she moved around. This was because the usual interaction button for slowing blood loss was replaced with her Withstand ability instead.
  • Zofia could not use Withstand if she was downed by Frost's Welcome Mats.
  • Like recovering normally, Zofia was left vulnerable whilst self-recovering with Withstand, leaving her open to enemy attack.






Patch Changes[]


  1. 1.0 1.1 Operation White Noise: The Bosak Anchor
  2. Zofia's In-game BIO > BACKGROUND section
  3. Zofia's In-game BIO > PSYCHOLOGICAL PROFILE section
  4. Zofia's In-game BIO (Pre-Patch 3.1.2)