What position would you choose?
I'd go first. I can handle any zombies we run into and it will mean that I can always see what's happening. There's also no chance of a zombie creeping up unnoticed behind me.
I'd go in the middle. I don't really care that I won't be able to see what's happening. The person in front is likely to run into zombies first, while the person going last might get grabbed by zombies coming up from behind.
I'd go last. Zombies are too slow and noisy to creep up behind us unnoticed so there's no risk there. The first person is always going to run into the zombies first and if we have to turn and run I won't be trapped behind anyone else like the person in the middle will be.
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