In Rainbow Six Siege, the top three Attackers are Nomad, Zero, and Thatcher.
Nomad is known for her Airjab repulsion grenades, which are effective against roamers.
Zero offers versatility with the option of an SMG and Argus cameras for intel gathering.
Thatcher's EMP grenades are highly useful and versatile, making him a strong choice.
The operator tier list for Attackers includes S-tier (Nomad, Thatcher, Zero), A-tier (Ace, Brava, Finka, Hibana, Iana, Jackal, Maverick, Sledge, Thermite, Twitch, Zofia).
B, C, D, and E Tier include B tier (Ash, Buck, Capitao, Dokkaebi, Flores, IQ, Lion, Osa, Blackbeard), C tier (Fuze, Gridlock, Kali, Nøkk, Grim, Sens, Ying), D tier (Amaru, Glaz), E tier (Blitz, Montagne).
In terms of Defenders, the top three are Jäger, Mira, and Aruni.
Jäger remains viable despite nerfs, with his Active Defence Systems and the 416-C Carbine.
Mira's Black Mirrors and versatile loadout make her a challenging opponent for attackers
Aruni stands out for her strong weapons, versatility, and punching ability.
The operator tier list for Defenders includes S-tier (Jäger, Mira, Aruni), A-tier (Azami, Bandit, Echo, Fenrir, Kaid, Kapkan, Mozzie, Mute, Smoke, Wamai, Valkyrie)
B, C, and D Tier includes: B tier (Alibi, Castle, Ela, Lesion, Maestro, Melusi, Pulse, Solis, Thorn, Thunderbird, Vigil, Warden), C tier (Doc, Frost, Goyo, Oryx, Tachanka, Caveira), D tier (Clash, Rook)