This quest is a giant cluster **** on a populated server. Multiple groups can start the encounter at the same time which means mobs are running around everywhere.
You have to tag the last guy to get credit for the quest and there is a good chance that you won't get the tag with that many people running around.
Beyond that if you don't get the tag but still kill the guy the quest just bugs and you have to reset it and get the explosives again.
This quest needs to be redesigned IMO.
yea it used to get quite manic in beta lol, could image how much worse it is now