PayDay The Heist: Crowbar! and Are there more than two

Guide for crowbar-secret in Payday: The Heist. It also grants you the “Are there more than two“-achievement, ’cause there are over 40 money bundles on the floor of that room. Crowbar only spawns in overkill 145 difficulty (but it’s not 100% spawn). You can get it from the outside (as on the video) or from inside the building if the door is open.