Hi
Ghosts locations have long been on the internet, however not everybody likes to spoil the game by going to see the easy way on the web...
However I must admit that finding ALL the ghosts by a single person, I would say it's nearly impossible... So I suggest a system to be coupled with this daunting task... I give you...
THE GHOST BEEP BEEP!!!
As simple as this, when we enter a zone and we pull up out our ghost, he gives us a message that it's detecting dead ghosts in the vicinity. They are his brothers, he should be able to sense them somehow. Each zone is huge and full of places to hide the ghosts, so you would not be making our life easy, buy just "more possible".
Another idea would be to have the ghost make a sound when he was near another dead ghost, but I like the first option more.
Bungie, please think about this. I love the game, but this is indeed a daunting task given the size of the game and size of the ghosts...