I do not remember if i got it originally, ive been playing since beta, ive brought 3 clanmates on the ghost hunt to get all their ghosts with them and ive watched 3 out of 3 get that ghost but i cant see it nor can i pick it up if i aim at the spot it should be, i've tried in "the Array" mission on patrol and on all 3 classes in each of those. And no i do not have the grimoire for Darkness 3