Kind of a tangent answer but did anybody see the movie "Triple Frontier" by J.C Chandor?
It's about a group of mercenaries who decide to rob a druglord's stash house full of money, deep in a South American Jungle. Things obviously don't go to plan.
After I watched it though I thought it would have made for such an awesome stealth Predator movie, like if the Predator just appeared about halfway through the movie but the audience didn't know it was a Predator movie.