2 More Onyx Medals Down!

I got two more Onyx Medals last night, both in horde mode. I got the Squad Leader and Loot Courtesan Medals Finished. This leaves 3 more Onyx Medals and 1 achievement left for horde mode. They are Big Money (which all of that money will go into silverbacks so I can unlock rockets and get the 500 kills required for the 1 achievement left), Horder which I need about 900 more waves played, which is fine because it may take me that long to get the silverback achievement and Architect which will require a lot of boosting with a 2nd controller. I will have to build a headquarters, finish a wave, back out of the game and do it again.