The toolbox of the US Marine breachers is as versatile as it gets; from sledge hammers and mechanical saws, to shotguns and explosives. But why Marines hold their weapons upside down when breaking doors, how breachers can replace half of their explosive charge with a bag of water and still accomplish the same result, why after blowing a hole in a concrete wall, breachers sometimes rush toward it with a mechanical saw, and what’s the number one mistake that will get you kicked out of Breacher’s school, is #NotWhatYouThink #NWYT Music: Saltine - Tigerblood Jewel Seatbelt On - Brightarm Orchestra Extra Fries - The Fly Guy Five Universal Solution - Robert Ruth Enter The Night 1 - Fredrik Ekstrom Outer Space - Kikoru Dark Mind - Wendel Scherer Missing the Subtext - Cobby Costa Montage of a Map - Eden Avery Command Pattern - Max Anson We Are Giants - Silver Maple Dark Water - Magnus Ludvigsson No Stone Unturned - Brendon Moeller Cut the Mustard - Tigerblood Jewel We Are Giants - Silver Maple Footage: Select images/videos from Getty Images Shutterstock US Department of Defense Note: "The appearance of U.S. Department of Defense (DoD) visual information does not imply or constitute DoD endorsement."