Heh. I ran Under a Blood Red Moon from the perspective of Vampires and this is essentially what happened. I liked it but from memory I changed things a bit.For me the one that stands out in my memory was Under a Blood Red Moon for Vampire/Werewolf. I remember my friend, as an experiment deciding that he would run it for us as a group of werewolves, but try to stick to the scenario as much as possible. We started with sensible, characterful werewolves, Bone Gnawers, with street skills... those died within the first scenario, butchered with uzi's filled with silver bullets (seriously it seemed every ghoul, mook and their dog was tooled up with most of the world's silver deposits. It was a fantastically badly railroaded situation 'but Mr Elder werewolf, we know the vampires are in this building can we not set the place on fire, and smoke them out of there?' 'No you must go into this well defended and prepared building as I want confirmed kills for these random NPC vampires' (I'm convinced the werewolf Elders worked for the insurance companies and didn't want to pay out for fire damage to the property).
I think we gave up after our third batch of characters, each dying in quick succession (I think the third iterations had become pure death machines lacking even the basic pretences of character.)
I always had a low opinion of Werewolf (weakest in concept of all the Storyteller games), a horrible hodge-podge of a game, with all the coherence of ideas and tackiness of a shelf in a new age shop; but this scenario just managed to drag it lower (and took vampire screaming down with it).