Bests & Worsts Reviews from Amazon

With the military background of the author, I found myself very disappointed with the main character. He starts out as a mature tough marine that has survived combat, witnessed the death of his comrades and is undergoing extreme training with very little complaint. He is highlighted as having strong combat abilities and demonstrates adaptive thinking when confronted with impossible scenarios. Then for some unknown reason it all goes downhill when he gets his combat armor and battle computer and is sent on his first mission. He becomes a whiny adolescent that needs constant babying from his AI computer. He becomes as dense as lead, somehow not being able to think logically though the simplest scenarios. It appears that all his years and experience as a marine just disappears. He is belligerent and whines about everything. He get supplied with amazing weapons, specially made for him and again whinges that they're not high tech enough. He disobeys his orders just because he is upset about where he was sent to for his mission and how he was sent there. The main character constantly uses "Whatever" as a statement. This statement is used indiscriminately and often throughout the book which just ends up being annoying and detracts from the story. Started out with such promise.....What happened?