Undead Labs studio head Philip Holt:

Undead Labs studio head Philip Holt says that six-year gap between the reveal trailer and now could be explained by the fact that, urm, the game didn't really exist back then.

"You know, the game was in a Word document," he adds. "It was really the very beginning of [the] software. The trailer was done by Blur, it was all pre-rendered."

"And as we've had a chance to build a team and get going on the game, some of those elements I think are gonna persist in the game that we deliver and some of those things are just, like, we're not doing zombie animals."

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