If your using Russians you need to have them flying a dime a dozen AN-12, everything in the cockpit is in cyrillic not english. SOP is use internal APU that power 28 VDC starters, don't forget to pull in the crew ladder and run over it( it happens) also if your looking for realism describe the smell of vodka and feet inside the plane. For taxiing they start one engine release brakes taxi and have the other 3 start on the way to the hammer head. AN-12 the older ones still have a tail gun compartment, the windows are painted over and guns removed. Or use a AN-32 or AN-26 which are very common all over Asia, both are more or less the same plane except for different engines. Russians are cash and carry type guys, along as you pay them they will deliver, but sometimes you wonder if they own a watch or calendar, plus they all most always fly with a bottle of vodka somewhere in the jet so being sober is always a question.