I found this at
http://gamefaqs.com
If you're stuck on any other game, you can check out that site, and see if someone has created a walkthrough.
This is for anyone that was stuck like I was (on mission 9) and needed a little assistance. Also, all of the bonus objectives are here too.
http://db.gamefaqs.com/console/ps2/file/socom_ii_b.txt