The military has a lot more to consider than just the best performance of a weapon in a specific situation.
I've tried to have a simple conversation about this, but you insist on coming after me with the attitude that I think I'm a know it all as part of your defense. That's has nothing to do with a conversation about the merits of an SBR compared to a full length rifle. You've done it repeatedly even though I've pointed it out to you. OK.
I think the most likely reason you are unwilling to have a real conversation about this is because you have probably spent a crap load of money on weapons for the sake of being tacticool and can't stand the idea that it was money wasted.
Early on, someone else said the reason they have SBRs is because that's what they want. That is a great reason and no further justification was needed.
cool story papabear