
What named creators run on Frost, and every option the game allows. Plus the gadget interactions that decide the matchup.
Primary and attachments: NotJoeyBlack and Rasco100's pick.
Rainbow Six counters are gadget interactions, rules of the game rather than statistics, so every pairing here comes from the two operators' own kit pages: the mechanism from whoever wins it, the gadget it beats from whoever brings it.
A Welcome Mat only works on someone dropping into it. Fuze's cluster charge clears the landing spot through the floor above, so nobody has to test it.
A Welcome Mat is a floor trap, and the BU-GI Auto Breacher destroys devices along the floor it travels, so the mat goes before an Attacker ever steps there.
From Ubisoft's Frost page and the community wiki, in our words.
Any attacker who steps on one of Frost's three Welcome Mats goes straight into the downed state, and has to free their own leg or wait for a teammate. Hide them where attackers land without looking down: under a window they will vault through, on the far side of a table, or under barbed wire. The mat is mechanical, so gadgets that disable electronics do nothing to it, and a Bandit or Kaid wire on top turns a downed attacker into a dead one.
Frost is a Defender in Rainbow Six Siege.
Frost's unique ability is the Welcome Mat, as named on Ubisoft's own Frost page. Every gun and gadget Frost can carry is listed in the loadout card at the top of this page.
Rainbow Six's counters are mostly deterministic gadget interactions, rules of the game rather than statistics, so we state them from the two operators' own kit pages with no telemetry needed. A pairing is only written where the winning operator's page names the mechanism, which is why plenty of operators here carry none. Statistical data is based on external APIs and publicly available information. It may differ from official data.
NotJoeyBlack, Rasco100 and SINOOS publish loadout picks under their own name, and this page credits each of them rather than averaging them into a single answer. We measure nothing ourselves. The list of what Frost can equip is the game's own, and is separate from anyone's opinion about it. Statistical data is based on external APIs and publicly available information. It may differ from official data.