Here is the list of difficulties for the 4.12m realise:
difficulty SeparateEStart 1
difficulty ComplexEManagement 1
difficulty EngineOverheat 1
difficulty TorqueGyroEffects 1
difficulty FlutterEffect 1
difficulty WindTurbulence 1
difficulty StallsSpins 1
difficulty Vulnerability 1
difficulty BlackoutsRedouts 1
difficulty RealisticGunnery 1
difficulty LimitedAmmo 1
difficulty LimitedFuel 1
difficulty CockpitAlwaysOn 1
difficulty NoOutsideViews 0
difficulty HeadShake 1
difficulty NoIcons 1
difficulty NoPadlock 1
difficulty Clouds 1
difficulty NoInstantSuccess 1
difficulty TakeoffLanding 1
difficulty RealisticLandings 1
difficulty NoMapIcons 1
difficulty NoMinimapPath 1
difficulty NoSpeedBar 0
difficulty Reliability 1
difficulty GLimits 1
difficulty RealisticPilotVulnerability 1
difficulty RealisticNavigationInstruments 1
difficulty NoPlayerIcon 1
difficulty NoFogOfWarIcons 1
difficulty BombFuzes 1
difficulty FragileTorps 1
difficulty NoEnemyViews 1
difficulty NoFriendlyViews 1
difficulty NoSeaUnitViews 1
difficulty NoAircraftViews 1
difficulty NoOwnPlayerViews 1
difficulty RealisticRocketSpread 1
difficulty SharedKills 1
difficulty SharedKillsHistorical 0
difficulty No_GroundPadlock 1
Don't take care to the value (0 or 1) they're mine settings...
