Main titles indeed
If I had to pick 1 aspect of this song that I liked the most, it would be the instrumentation. You did a superb job putting it together. I would have added more bass in the section after 0:53, because the high strings seem a bit flat without the contrast. I also don't like the bass kicks at the end of the song. Besides those 2 details, this is a great song. I agree, it does sound like the main titles to an action movie. The sticks, soft choir, and the quick, light strings, especially at the beginning, reminded me of Danny Elfman. It frustrates me to see a song this good get carelessly zero bombed.
Please contact me if you would like to use this in a project. We can discuss the details.