I love this mission! It took me a couple of tries the first time I played it. The mountains themselves are a bit of a challenge. I tend to start climbing from takeoff, in order to clear them.
Once I reach the IP, I usually hover low in that valley, then edge forward once the SEAD strike takes place. I tend to start with the line of BTR's on the left. I send no orders to my wingmen, who tend to take care of the bandits, which I tend not to be able to even see until they're hit.
The target area has a couple of lines of BTR's, which can cause some problems, but I think the biggest risk is that there are one or two guys with Iglas somewhere down there. I'd say that it's best to use your range advantage as much as you can.
To be honest, that's pretty much how I try to tackle any given mission.