Just called my friend who is an RL army Gazelle pilot:   
Shutdown procedure: 
AP OFF 
Collective on tight fricition (not simulated) 
Landing projector off and stowed 
Transponder, ADF, UHF, PR4G, NADIR off 
Keep VHF MA on 
Pitot heat, trim, RDR ALTM off 
Emer AI caged 
CG off 
Pos light CLI (flashing) 
Anti collision off 
Fuel flow lever full back 
Engage timer for 1 minute 
170 rpm NR: Rotor brake 
Once rotor is stopped and blade in the axis: 
Pos light FIX (Steady) 
Once the minute is passed:   
Inverter off 
Pump off 
VHF off 
Pos light off