Yeah, the /killme command worked a treat for me and let me complete the quest. You do need a heal kit for the wound though, or sit on the campfire for a few minutes. I'm sure they'll get around to fixing it :)
Exactly the same issue, The other two beacons were fine, but the east beacon just will not complete. I activate it, I get the first wave of orcs, no elf arrives, and then it just seems to reset, ready for me to activate it again.