This Is My Zombie Killing Shirt
This shirt is to let people know what you're up to and just how good you are at killing zombies. The question is, do you kill zombies *in* this shirt or does the shirt kill zombies? Grammar is weird sometimes.
Actually, there'd probably be a hyphen in there (i.e. "zombie-killing shirt" if it meant that the shirt killed zombies.
So whatever weapons you prefer, just make sure to prepare yourself and stay in top physical shape. Gotta have make sure you do enough cardio.