Doors and More Doors

Bang. He's dead, you happy? His stammering wasted a lot of precious time. You're overthinking it, though. Your heart is beating out of your chest. 'Precious, precious time,' you think to yourself. 'What do I do?' Seconds tick by. You look around. The hallway is long and yellow, and it looks like there is an elevator a few rooms away from you. Suddenly, you hear a stampeding up the stairs.