Oooh, swamp zombies. Swampies? So aee these the villagers we're trying to rescue, or just corpses?
Well, we're not sure as of right now, since everyone's a little busy trying not to be eaten. Also we still have one or more larger creatures lurking around.
Was wondering. Do we have to chop rhe heads off these guys, or do they just die like normal?
For the purposes of creativity, I'll say that they're tougher than average humanoids, since they are undead and don't really need air or bloodflow to live, so a stab to the heart or crushed lungs, slashed throats won't do it. But to avoid the tedium of having to decapitate every zombie, I'll say massive trauma will do it. To use your post as an example, Drell, chopping down through half the things chest cavity? Definitely counts. Obviously, mass trauma from magic will do it too. Not to mention cutting off the head.