Teams: CSKA, Russia aka EE's Team
well there are so many Russian ultras/hooligans groups that i can't name them all. u should be able to find information on them pretty easily using google.
CSKA, Spartak, and Zenit, the 3 teams with the largest hardcore fan bases have many different firms within there club, Spartak especially.
If im not mistaken CSKA and Spartak ultras/hooligans are right-wing and very racist. here's a list of some of the firms for both teams.
CSKA-Red-Blue Warriors, Yaroslavka, Kids, Shady Horse, Mustang Firm, etc.
Spartak- Flints Crew (main rivals are Red-Blue Warriors and vice versa if i'm not mistaken), Clockwork Orange, Mad Butchers, Aliens (i think this firm is based in St.Petersburg.
those are some i kno off my head, just go to google if u have the time and look them up, most of the sites i've been to are in Russian though.