Depends on how good the chain mail and the sword actually is.
Very few places make it battle ready.
(
Mu Dinofiddler,
Thu 14 Jun 2012, 13:56,
archived)
Not falling apart after a few whacks would do the trick, surely.
How bad would chain mail need to be for a zombie to bite through it?
But then I'm not a battle re-enactor.
(
Afinkawan Yes I can hear you Clem Fandango,
Thu 14 Jun 2012, 14:06,
archived)