I seek this OST. I'm also looking for some Skies of Arcadia music, there used to be a topic regarding this subject once upon an age but it has disappeared along with any conclusions it reached.

Piastol's theme and Doc's theme are what I'm looking for. Gracias.

The search option is your friend
Skies of Arcadia (Thread 39734) can be found there.

Metal gear portable ops (Thread 34948) can be found here.

Thank you much.

I'm looking for the theme they played in the trailers, the one in the OST is missing the main them of MGS. Here is a link to the song:

http://www.goear.com/listen.php?v=95af8d8

any help is greatly appreciated!