Hit this up last night. Massive amounts of green engrams (may be dozen) 3 blues, no purple. Two blues were weapons I already have, one was armor that was not as good as what I'm wearing. At one point some message about 'enemy forces engaging' or something like that happened and it got real interesting. The heavies came out to play....lots of higher level enemies and lots and lots of lower tiered baddies. Thought it was a public event, but we didn't get any notice for tier performance afterwards.