Being a soldier in the Army, we are taught blindly following orders doesn't make it right. There are always orders you know to follow or disobey. Heck he didn't even follow simple rules of engagement. Shinn could have tried to take the time to figure another way of capturing Kira but chose revenge. I mean come on do you think if he was given orders to take them alive he would've. I've had friends and family members lose there lives in war but blind rage doesn't solve anything, it just gets more people hurt. Shinn hasn't thought about it but he's just as bad a person as the mobile suit pilots that killed his family. He's killed someone's father, brother etc... Shinn is a superb pilot. How hard could it be to disable a moblie suit if Kira and Athrun can do it. He doesn't even care that Stellar left hundreds in worse condition. Don't get me wrong, I thought Shinn was an ok character at first until I noticed he doesn't believe in anything except vengance. If someone showed him what he was doing I'm think he may change his ways.