Gunfire opened up again. Hot, heavy impacts thudded across her jacket, and shrapnel whirred past to leave deep gouges in the metal walls. She kicked the door open, ran through, and unzipped a thigh pocket to pull out a smart claymore mine. Its six-inch body had two buttons on top: one for a trip wire, one for location sensitivity. She toggled the second and a small red LED glowed, indicating an active charge. Alice tore off the rear sticky pads, slapped the claymore onto the wall, then set off, head down, sprinting with every ounce of energy she had left.