I do agree it's not easily feasible. Another of my issues is that as much as we love our service members, some are legitimately messed up people who don't belong in the military let alone around fire arms. Have you ever stood duty on a payday weekend when 80% of the barracks is blitzed? The probability that a young kid could make an awful mistake because he has a firearm and is heavily inebriated is probably higher than an active shooter incident.

And not really last, but getting everybody qualed and trained on handguns is already not possible. Not to mention if an active shooter incident does occur, and multiple people pull out guns and rush to the rescue, it may not be easily apparent to them, or even the MPs who the shooter is and cause friendly fire deaths when adrenaline is high.

Just one man's humble opinion