I'm definitely not crazy or the only person thinking that this is true.
Ghoul is a reincarnation of Ta'aruc.
Evidence:
Both cabal
Both like to shoot stuff
Both will repeatedly get their "blams!" whooped by guardians because you can at any mission as much as you want.
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nope! Bungie change their names! (same as they put the "2" in the Destiny logo) XD That's all news for D2