Tagron, there seems to be very little data published for this military airfield, but to illustrate, here's an excerpt from the Russian AIP about PAR minima for Vnukovo (UUWW, one of the proposed alternates for the flight):
The control shall be commenced from
the moment of detection of the aircraft position blip on
PAR display in the vicinity of final turn and terminated at
500 m before RWY beginning.
NB: UUWW uses 3° glideslope, while 2°40' is more traditional for Russian airfields.