I just went on a little shopping spree. I now have 4 Uchigatana's.
Ideally there should be bloodstains on the floor showing you how that player died. Although I haven't found bloodstains to be as useful as in Demon's Souls.
No, and it shouldn't be spelled out. Just that the ground rules should be explained. Tell the player that there'll be bad guys they won't be able to fight just yet. Give sufficient warning, like a load of dead bodies leading up to the first Dark Knight.
Ideally there should be bloodstains on the floor showing you how that player died. Although I haven't found bloodstains to be as useful as in Demon's Souls.