If I can make a suggestion just stick to the Huey, it's a very systems accurate representation of an old school turbine helicopter and with the same airframe you can fly utility (supply, air ambulance, troop missions or my favorite landing on a frigate in rough seas) or go hardcore with ground attack with rockets or guns . If you want to fast track go get 5 hours of lessons on a real r22(even an hour is worth it) and that is worth hundreds of hours of simming and will take you to a level you will never get to by just simming.