Just a heads up,
The 21st Century figure line has a license to the movie Platoon to make figures of the actors/characters in that film along with some vehicles. The good news? Yes, you will have a Tom Berenger (all scarred up) Sgt. Barnes head for fodder... You will have a Charlie Sheen head, you will have a Johnny Depp head, and a Willam Defoe head even. Lots of great fodder...
The bad news? Finding 21st figures is a pain in the backside for many. I still have yet to see a lot of them, especially the Japanese. Wal-Mart's just attrocious at distributing 21st's stuff, however they may be seeing other retailer outlets as well as etailers (which they've always been at).
Enjoy...