I'll give it a ten, but. . .
The animation and all was great, but it was hugely inconsistent. At first, the Gas-mask-wearing men shot through the pew, but in the next seen, it was intact. Also, the gun the religious man picked up was a six-chamber revolver. Yet he shot it about 12 times without reloading, when it should only be shot six times, in reality. The music was good, it was smooth. The hill in the beginning seen, which nests the church looks 2-dimensional and out of place in the scene, and it then changes to have a small outcropping of rocks at the end, which were, previously, non-existent. These things always come blaring out of an animation and make it the worse for me. All in all, it was very good.