Metal Gear Solid 2: Sons of Liberty HD Edition Tips

Getting Dog Tags the Easiest Way
First, get behind a guard, use your gun (as long as it's a pistol) to point at the guard by holding square. Snake or Raiden will say "Freeze!" then get in front of the guard by pointing at his dick. The guard will say something like "Please don't shoot!" Then he will start to wiggle then a dog tag should come out. Then you can shoot the guard. (Use a M9. It's a good idea to use without the guards noticing something's wrong. Or put a clip on your other gun.)