Alien-Vampire hybrids are actually possible..
DISCLAIMER: this is not officially supported, attempt at your own risk, while I'm not certain it COULD corrupt your save game Looks like when we were told there were no hybrids, it wasn't completel...
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Seems more likely that they simply ran out of time to finish it but left the ability for hybrids in so they can patch the option in down the line if/when they add more supernaturals.
