We cleared it just yesterday on normal, and all we did was burn 1st, 4th and 5th. 2nd and 3rd are the only ones that seem to need a strat. As far as im concerned, this is the most useless and easiest instance release we have ever had.
Also 3rd is really odd, there are orb type things on the ground that in normal mode blow up and deal 50k flat damage (40k with wep guard) to everyone in the room, both times we did it they blew up and hit me for 40k x 6 within 10 seconds of entering combat with the boss... *shrugs*
We burn till the laser mobs come, then burn him down to like 5% HP. Then goes un-targetable. Do we have to burn the portal thing behind him, before the mobs start coming and stunning us and killing everyone?
When the boss gets un-targetable at the end get over to the portal behind and kill it, as soon as it dies the boss will disappear and the loot chest will appear.