The concept is the following:
A band of gentlemen vampire finds a suited mortal assassin (already have levels in the assassin class) and make him a vampire so he can become an assassin of vampires. The idea of the PrC was to allow the assassin to use it's assassin's abilities against vampire. Maybe just a few feat to patch the current PrC would be ok though. Thanks for all your replys !
A band of gentlemen vampire finds a suited mortal assassin (already have levels in the assassin class) and make him a vampire so he can become an assassin of vampires. The idea of the PrC was to allow the assassin to use it's assassin's abilities against vampire. Maybe just a few feat to patch the current PrC would be ok though. Thanks for all your replys !