Re-make?
Possibly not the most popular suggestion, but I think (if done right) a re-make for this film could be great.
Some people may not like the idea but ,in the end, this is a cheap 80's action movie (though its still pretty good) and if remade, with actual military advisement(God knows there enough ex SAS and Navy SEALS out there without work) this could be a top class, hard-core, mercenary film.
Secrets aren't my concern. . . Keeping them is.