Memish build: Glass bullets, 1 bounce, shoot 2 bullets at once, shoot both front and back, spinny thing (shoot while reload). Just walk into a room and start spamming, everything dies.
try using shotgun shells quad barrel the shoot wile reload thing an auto trigger (if its the bouncy one its good) and bouncy grip and bouncy/reversal stock is practicly same but better edit it can wipe out some rooms in like 1 entire magazine and bosses are getting melted