Hey
I've never tried the load bit but herre goes.
Get you chopper, and make a waypoint near (Or wherever) the squad you want picked up. Make the waypoint, "Load" To keep the engines going, type in the activation feild of your waypoint,
Unitname flyinheight 0
And for your squad that gets in the heli, make a wayopint of "Get in" near the Load waypoint, and click F5, click and drag from the Get in waypoint to the Load waypoint.
Hope that works
O Neil
PS: I've never done that before, probably won't work cause the info comes from me.....try it anyhoo.