I want to download the Gun Runners' Arsenal DLC for the Katana, but it says on the description:

To use this download, you will need product code BLUS-30500.

What does that mean? Do I need to check something or what? If it helps, I live on the East Coast of America and I have a PS3 console.

While I'm here:

-Can you put dreads on a African female in this game?

-Where is the easiest place to acquire the Katana? How much is it?

-Is a sneak/melee character viable in this game?