How do you get all of your weapons back in Metal Gear Solid 3

This is one of the hardest moments in Metal Gear Solid 3 because you must not be detected. After escaping the Groznyj Grad torture room, head to your right and go through the door. now head west, go under the pipes into the sewer keep following the tunnel until a cut scene starts. After Snake jumps off of the water fall you should start walking down the Sorrow's river. Keep walking down the river and avoid the sorrow's attacks until you get to the end. Use the revive pill and continue on. You should meet up with EVA and get your weapons and a new camo.

Now if this isn't what you were asking, you should have more detail to your questions.

If what you were really asking was "How do you get your weapons back when starting a new game in Metal Gear Solid 3? " The answer is you can't you can get back special items and weapons by loading your game completion save. You should start the game at the beginning. Unfortunately, you must find your other weapons over again