- Consider the zombies to be human-like, with characteristic zombie gait, only differing in that they don't need to eat, they eat out of taste for human flesh, not out of a need for nutrition. Do not consider normal metabolism.
They can very well run continuously, accumulating lactic acid without pain. There's no thermodynamic limits for them, besides that they can do whatever a normal human can do physically.
They feel no pain and have the IQ between a cockroach and a anemone. In other words they are purely reactive. They seem to not have immune systems, so they rot under anything that consumes flesh. They only stop moving when they are out of muscle tissue.
The difference in speed is due to activity in cerebellum, its a matter of remembering how to run. The smart variety still remember how to do trivial tasks like opening doors. The dumb ones can only run towards a target. If they lack a leg they will be unable to stand up, walk or run. They have no tactics whatsoever.
- Consider the Roman army well supplied and protecting a large walled city. No zombie casualties inside the city so far (the city is clean). The Roman army has to go outside and restart trade routes in order to resupply the city. Ignore countryside. The task at hand is simple. Protect the city and reopen trade routes. Consider standard equipment and tactics. The city is a large city but is not Rome itself.
Given a standard occupation roman army from Caesar or Augustus time, and a horde of archetypal zombies, how would the roman army fare versus the zombies? What tactics should be used ?