So, we all know taking halaa can take very long time.
Lots of bombing runs and whatnot.
Let's see what we can do..
You need:
Holy/Prot paladin. Or a tanking class with a healer behind them.
1 guy bombing - the more the faster though.
You take your tank, round up every guard there is, move them to the middle ->
this way every single bomb you throw will hit everyone of them.
Common sense? Should be, don't see anyone doing it though.
Oh, and if you're saying "lolz u will get gnaked", well theres not really any people in halaa except for when the place isnt theirs or they see guards remaining less than what it should be, and when they see that it's going to be to late because the guards will drop fast as a sack of shit.
Or you could do it late at night/early in the morning, whatever you wish.
This just does it so much faster.