Backwoods

"When a gaming engineer is asked by her boss to join a company paintball battle in the remote wilderness, she eagerly accepts. But when the woods reveal a hidden band of savage survivalists, the city folks must come to terms with their own brutal killer instincts -- or suffer an unthinkable fate."@en
"When a work group goes on a camping retreat in off-limits territory, they encounter dangers more serious than the paintball fight they has planned. Lee becomes concerned when she learns of a couple who went missing near their campsite, but worries are tossed aside when the swimming, fishing and drinking begin. Outcast Adam is the only one who can't shake the feeling that they shouldn't be there, and his intuition proves to be right when the party splits for the paintball game. They don't realize they're being hunted by outsiders as well as friends. Exposed in unknown territory, both groups are captured by deranged hillbillies and they must fight for their lives to escape."