Movement alternatives?

[Pfr_Fate]

Yeah, there are so many reasons why a Hero would move less or more. Figure:

1: has to sneak that turn, freaked out and checking for a chance to run past the zombies.
2-4: normal movement for someone in a town full of undead. Don't attract their attention!
5+: sprint.

Options:
-You could roll 2d3. They won;t be slow all the time nor run.
OR
-Let the person have a +2 after the move roll, but any zombies in line of sight get an immediate one square move towards that character. This could alter strategy and tactics, drawing zombies away.