TO AaronG:
Making your own chopper isn't a problem. I've included texture coords (you can change logo on it's side to yours one in 1 minute or less using smth like ACDSee), total script description and even little user manual containing modeling instructions with it
Scripts can be used with any models, they include takeoff handling when player reaches distance limit, and follow-player action (video describes it better than words). Heli cant't land but I can think about such feature (f.e. it can land after 3 minutes of flight, one question only - how to define WHERE it will land?).
For using rocket launchers some changes in model are needed - I mean redefining weapon spot - takes 10 minutes to do, but I'm a bit tired today
But you can use any existing weapon, even laser, with it - just play around with decals .
Machine gun can't be picked due to helicopter doesn't crashes to zero health (animation script restriction), but I'm thinking about this 24h a day
Redistribute this model for free, sure. I can make hundreds of such and become a 3D millionaire
Apache model is on the way also with russian K-52 or Mi-24 (havent't decided yet).
never give up