Bloodborne's DLC expansion The Old Hunters comes out tomorrow, but it's already out in the wild, and videos are being posted by YouTube user Grizwords.
You can check them all out below, including the location of many of the new weapons. Of course, you should beware of spoilers, so if you want to explore this expansion yourself you should steer clear from pressing play.
Gameplay
Weapon Locations
Boom Hammer
Gattling Gun
Fist of Gratia
Church Cannon
Beast Cutter
Beasthunter Saif
Amygdalan Arm
Loch Shield
Church Pick
Whirligig Saw
Holy Moonlight Sword
Bosses
Miscellaneous