Here's a better plot...

Okay, Vampires vs Zombies: Apology Edition

The movie takes place during the outbreak of World War 2, the Axis and the Allies need a small yet crucial part of Transylvania for shipping supplies between Europe and Asia. It's an autonomous zone controlled by the reviled countess Zelenska, who has invited the Nazis, Americans, Soviets, British, Italian and Japanese to send one ambassador/dignitary and only 1 guard or assistant.

All parties agree and are taken to an abandoned castle where she tells them they must all fend for themselves and whoever survives the night will be allowed their nation's passage. What do they fend against: her undead fledgling who she's just had enough with since they destroyed almost all of the countryside and any chance of her to prey on the peasants since they're already terrorizing and zombifying them. Since most of them didn't bring guns, except for a few guards/assistants and dignitaries with pistols, she's also arranged for them to use the arsenal which houses a decent collection of medieval weapons. She then hells out something to the effect of "Come children of the night and feast on some new flesh." She then retreats to her castle.

The men instantly start pointing their guns at one another and almost come to a bloody shootout, but the Brits talk them all into a deal that no one kills anyone until the dawn.

The Nazis have a suprise though, they sent a crack team of SS to come and try to force Zalenska into signing a treaty with them. All the SS are ambushed and killed save one guy, giving the Nazis the advantage.

The Soviet ambassador, (remember we were allied with the USSR in WWII) tells the allies that an entire batallion of Soviets is coming their way as well. The Americans don't trust them, but the British agree and convince the Yanks into going along with it.

Then they fight for awhile, maybe you could throw in a scene with Zalenska preying on a hot village girl. Maybe the zombies might also take over her castle as well.

One by one, most everyone gets wiped out in the first few waves of zombies and by the end of the night 2 nazis, 1 Yank, and 1 Soviet are left. They fight it out with swords, axes whatever, until the American kills one Nazi and a mortar or something cool kills the other one. Now the only two left are pointing weapons at one another when suddenly Countess Zeleska returns to kill them because Russian soldiers are moving in on their position. Zeleska tells them that she's forced to unleash her 'family,' consisting of several dozen vampires to kill both the soldiers and zombies in a ginormous three-way battle sequence between soldiers, zombies and vampires. Hmmmm, running out of ideas. I guess uhhhhh, the fighting goes on until daybreak, the vampires die and the zombies and ranks of the soldiers are decimated.

Umm, the end I guess, there's a lot to be filled in I guess but that'd be much better than this piece of $#!+ movie.