I never saw individual profiles in the beta. There is just one set of controls.
You cannot bind the M hot missiles to the same trigger as the L gun/missiles, or vice versa. I had asked about this when the beta came out and the reply was that the hot missiles were fired from the gunners control stick. I set my X55 so that the trigger controls the L weapons, and the pickle switch controls the M's hot missiles.
I imagine w/some fancy joystick programming it can be overcome but I like to keep things simple.