Trendy director (Margin Call, A Most Violent Year) makes an action movie with trendy cast (Ben Affleck, Oscar Isaac, Charlie Hunnam, Pedro Pascal) and trendy "operator" scenarist Mark Boal (In The Valley Of Elah, The Hurt Locker, Zero Dark Thirty, Detroit), produced by trendy Kathryn Bigelow (Strange Days, The Hurt Locker, Zero Dark Thirty). How that could go wrong ?
Interesting setup, dumb action (the heist is so phoned up and fake you could sell a shampoo there, also going full metal gear solid without suppressors), dragged as fuck intrigue about Mordor mountains even the eagles could fly over, some unreachable goal at the satellite age, two kids being ultimate mountain hunters and redeemable ending "leave no men behind though we came for money lol".
Triple Frontier crosses a lot of frontiers indeed, it's never a satisfying action movie, it's not really a thriller and it's definitely not a good movie. It's merely a hangover sunday flick you'd watch doing anything more interesting clipping your toenails or folding your laundry.