Russian speaking OC groups mostly stick to their own business and don't fight for "territory" in the US, they will more be interested in joining forces for business rather than having wars over imaginary things. They have their internal wars for authority, as much as LCN has. The business the big groups do is more financial crimes, such as frauds for example credit card fraud or medicare fraud as it's more profitable and with less risks.

Russian crime groups have more different approach to violence, for example contract killings. There are people who specialize in that and only perform those kind of jobs, simply the other story for LCN where to become a "made man" is must to have killing someone. There are these nuthead groups from time to time as KillingJoke mentioned before, but these are small groups and as they are nutheads then they easy turn on each other when it comes to prosecuting. In Russia it's a different story, violence is used more, not to an extent like with Mexican Cartels and motorsaws, but still if you have feud with certain groups, you might end up getting beaten to death or criple status as the smallest outcome of it.

Difference from LCN is that these groups don't have this all control over each other thing, with one structure and some commission on top. Each groups has different ranking, and structure and all Russian speaking groups are not connected to each other, which eventually makes them just individual groups rather one big organization. I might be wrong, but in my opinion, LCN faces all this attention from Law Enforcement due to their structure and old traditions that they don't change. Once they know the ranks, they just need to fill it in like a middle school quiz for biology.

90's was a period of reforms in the ex-USSR countries, different from the traditional Thieves groups - were born lots of different crime syndicates and groups all over the territory, each one fighting for power. Sometimes in small cities they just fight for one small market to extort potato salesmen(sounds funny, but true). It was a crazy period and lots of killings happened, for different reasons - power, double crossing, money, etc. The ones who survived these years in the criminal world are now very respected people, some turned into legal businessmen, some stayed the same.