Bain was an animal, kept in a cage of demons while they pumped drugs of every color into his system. They day he broke loose, he swiped a couple pistols from the security guards. These pistols seem to be pretty handy, either from a distance and even up close. Adds a bit of metal to his punches.
The Collector holds a vast array of weapons. This particular katana was a gift from a strange individual, who gave it to him to keep Bain in the Asylum. Bain keeps a tight grip on it, knowing that whoever plotted to kill him and his family once owned this sword.
When up and close with an enemy, few things speak as loudly as a shotgun. Once belonging to a member of Torque, this gun packs the angry fist of that once lively man.