BSAA Emblem #24 - It's located immediately after you successfully traverse the second conveyor belt 
you encounter. Not the first, but the second. After traversing the danger and shutting down the 
conveyor belt, run down the nearby staircase and look to your left. You'll see an open, blue-colored 
dumpster. Examine inside of it and you'll see the emblem in question. Keep in mind you'll need to use 
a weapon like a sniper rifle to hit it, because even though you're at close range, Chris won't lift 
his pistol high enough to strike it with that standard weapon.