Lotta acronyms in that title...

Anyways, just curious what everyone's been getting from the new DLC. Out of 5 premium Specter packs and 2 standard specter packs I managed to get---
1 upgrade for my standard Widow (still don't have a B.Widow, btw), 10 old characters, and the Geth Plasma SMG which, I've got to say, I was pleasantly surprised to discover is actually pretty decent, unlike it's older brother the Pulse Rifle. Slap some Ultra Light Materials on that bad boy, give it to my Quarian Engineer and Turian Sentinel to give'em 200% recharge and just rock out with mah powahs. Gotta say it's nice to see a fully automatic weapon that leaves the target hurting (if not dead) after emptying an entire clip into them and not just mildly annoyed.
But on a related note, anyone got a Geth yet? If so, could you explain what the Hunter Mode ability does?