Ernest Smith’s Tommy Gun

Origin
Ernest Smith was promoted and demoted to corporal nine times during World War Two and was the last Canadian to earn the British Victoria Cross. After securing a beachhead, the Germans counterattacked. He fired a bazooka shot, then tommy fun rounds at the enemy, protecting a fellow soldier long enough for him to safely get medical aid.

Effects
It fires at anyone with malicious intent trying to harm those who are innocent or injured nearby. The rounds seem to be limitless and will keep firing until the assailant is either dead or gone. However, it seems to shoot at anyone with an evil plan in their head, so caution needs to be exercised when near it.