hi cecco
ukraine:
expect FL in feet, altitudes QNH and quite normal ATC service
russia:
flight levels in METERS
altituteds in METER QFE, you can either use meters (which I prefer) or recalculate meters to feet qnh (which might be prone to errors)
expect very short line ups to ils and 90° vectors,
report "gear down and ready to land" before landing clearence
report ready for take off after line up
DO NOT open doors after arrival from international flights, before customs officers show up at the aircraft!
arrange a local handling partner (e.g. to file local flight plans)
for inner-russian flights do not fly without a certain flight-permission doc.
VISUM: be prepared: either have a russian visum before flight, or request an visum upon arrival with your handling partner before flight. expect some delay up to a couple of hours..
Be patient..: ops here is different...
kazakhstan etc..
in general same ops than russia
check your jepp for entry requirements and establish radio contact and entry clearence before crossing FIR boundry
fly safe, enjoy the wild east
welle