SWAT fighters from the Dzerzhinsky Division = special forces fighters from the Vityaz Special Purpose Center of the Dzerzhinsky Division, 604th Special Purpose Center
Forces of the 604th Special Purpose Center are focused on rural actions and operations, such as liquidation of terrorist cells and heavy raids. However, large scale counter-terrorism operations usually involve SOBR, Spetsnaz, OMON and FSB units due to the large personnel demands.
The special forces unit “Rus’” was created on 1 August 1994; it may track its roots from the 4th Battalion of the Soviet OMSBON, the Independent Motorized Infantry Battalion of Special Purpose, later renamed ODON. The dedicated role of the Rus unit was counter-terrorism and direct action in times of crisis, but actively participated in military and paramilitary operations in Chechnya and the broader North Caucasus region along with other MVD units, such as Vityaz. - wiki
These troops must be the “highly trained” ones, stated as entering the country some days back. They are the best of the best, supposedly.
But the Putin cheering section told us that Putin only sent his B Team and all the dead Russians were just a bunch of scrubs.