First things first, the ambient wind and eagle screech (presumably Storm Eagle's?): I know what it means, so it's cool. If I didn't know what it meant, I wouldn't feel out of place for long. It's a great mood-setter, especially considering that the whole thing centers around a real "fighter pilot" sound.
Speaking of fighter pilots, I don't know if this was intentional or not, but the guitar riff at the beginning was modified just enough from the original that the first thing to hit my mind was not Mega Man X, but Top Gun. And, thanks to the afforementioned eagle's scream, it gave the feeling of shattering nature's silence.
I love the newly added delay in the melody. It really pulls out a sense of drama that was missing in the original piece. In fact, all of this remix is a means to this end. It has great build up, using different instruments on the melody, starting with some kind of synth-something, then to a guitar, then hitting its climax with two guitars, then backing it down to a slower rendition of the melody at the end. And all the time keeping us flying with the eagle using that ambient sound.
If there's one thing that impresses me, it's this kind of artistry. A lot of remixes lean pretty heavily on the original that they are drawn from. But Airbased, without changing a note of the original, is a piece that could have easily stood on its own without a game.
I honestly believe that this is the best remix on the site. If you haven't already, download it. You won't be disappointed.