this is clearly fucked up, head stomps are always fucked up, and even more gruesome to see in person. that being said i know several marines as well, many of whom are stand up guys, and some of whom are some of the best people i know. there has to be some kind of mental strain from the training, but to an extent the training is necessary to create soldiers equipped enough to protect our country against some of the equally, if not more fucked up, extremists and machines that we encounter. with that being said, not enough credence is given to the mental health of those coming out of the military, espeically special ops people and especially people who are coming out of active and intense duty. mandatory in depth mental screening should be necessary to deal with the problems and complexes that these dudes obviously have.