I'm at the part where you go back to the Storage area to get the sniper rifle to fight Sniper Wolf. The only way that I have found successful to kill the guards and get the rifle is using the socom with the silencer (This is my second time through the game). However, I don't have the silencer anymore. I looked up a walk through and it said that it was in the room to the right of the Tank Hangar. I went in, killed the sleeping guard and picked up everything in the room, but it wasn't there. A): how do I get the silencer? B): are there any other ways to kill the guards in the storage area and get the sniper rifle?