So.. stuff happened. Uzi and N managed to delay the Solver, and put it away, but the Solver managed to infect another Drone.. you, but it fused with you. So, to prevent you from murdering anyone, they locked you in the middle of Copper-9, where it was hollow. To keep you from also filling the space where the core was, they'd throw down defective Drones. Right now, it was feeding time.