I have a BP tracker and only had a few problems with BP not dropping one was the vega taunt which i finally got and the next and foremost is the Mizar rare shield. Shot every lvl mauder for at least an hour and not one shield dropped. I got one to drop when i first came to the system from a lvl 39 marauder that was part of a DS team. Scince then nothing, mabe a bug?