ok, as a musician i have completely scrutinized this song. I've been playing guitar for 4 years or so and learned this song as soon as it came out. also, as a singer i have studied the lyrics INTENSLY, and i can assure you, its 935.
i was actually planning on doing an analasis on this song for my first big post, but you pretty much covered all the lyrical side of it. good job.
you may also like to know that A7X's Singer M.Shadows, is one of the ONLY people outside of Treyarc to have an up to date storyline, 3Arc actually GAVE him full disclosure on the Zombie storyline so he could get his lyrics as accurate as possible, reinforcing my belief that he said 935 in that line.
But now i can do my part:
Synyster Gates did an amazing job with the guitar work in this song, the only bit i cant play is the very end of the solo....too fucking fast. ANYWAY-
the opening Organ/keyboard uses the same scale as the 'zombies menu music' also used in the song 935. More interesting though, is the duel guitar fade in arpeggio is actually the EXACT same notes as the theme, only extended to include the full scale (these are cut down later to groups of three notes when the actual zombie theme plays) my point is, that the theme didn't just fin in by chance, the whole song was written around it.