Pete Berg was largely responsible for that part of things, being the director and primary producer. I was just watching a blurb about how he had to explain to Marcus Luttrell that audiences need to see things a certain way, the "Hollywoodization" factor of any story, or they just often don't get it. The example was specific to Walhberg's reaction to the first Helo, Fallen Angel 1 being shot down - when in fact Luttrell had no idea that so many other Seals and TF 160 guys were killed until after he was rescued. Apparently many times when films like this are done, these little things aren't explained to the folks whom the story is about, and they take great offense to it, not understand that offense isn't meant, and that the "rules from the gods of filmaking" are just being observed.
Little changes like this are meant to drive the story forward, and to keep the audience in the grips of things, and are often created for pacing and many other reasons. I've seen about a 1/2 dozen interviews now with Berg and Wahlberg, and all of them they've really stressed the fact that they were going to do everything possible to ensure they honored the soldiers and airmen who died - and that Marcus did in fact threaten Berg at their first meeting, which was in Marcus's home at his ranch, which is like a mini shrine filled with parts of his fallen comrades uniforms, pictures, and an actual tombstone with the names of his 3 dead Seal teamates on it in the middle of the room. Berg said Luttrell was in a very bad place when they first met, and that he believed him 100 percent when he said he didn't care about killing him if he effed up making the film, and made his fallen friends look bad in any way.
I've got an old coworker friend of mine who has worked with Mark Wahlberg, he supplied the dogs you see used in the movie "Shooter" that Mark Wahlberd did in the Vancouver area here in Canada. This was 6 or 7 years ago, and even back then, he had nothing but good things to say about Wahlberg, and that he was a lot shorter in person than you would think, but still a tough and resilient little SOB, and very dedicated to "looking right" when operating firearms and doing stuff on the camera with them.
