[Black Dog] :: A creature of European and North American folklore, sometimes associated with the devil and whose appearance often portends the death of those who have seen it.

Stealth specialist Helldiver Jeanette Delacroix, widely rumored to be "cursed" due to the fact that she is always the sole survivor of any squadron she's sent down with. If she's diving with you, you'd best have your affairs in order, because you are definitely going to die.

(She appreciates the rumors. Being able to use those as a justification for preferring solo dives makes it easier for her to touch base with her Automaton contacts and carry out her CyOp objectives.)