I need one more gold solo for my challenges, and I'll be using my Kroguard to do so. I run Geth/Vancouver, but I had a bad experience last time I was attempting this challenge.
See, the drone got stuck in the floor and disappeared on wave 10 on my first attempt. On my second attempt, my Xbox froze during wave 11. On my third attempt, I actually made it all the way through without issue -- 1/2 of Gold Solo completed!
My fourth attempt was a WTF moment; I made it all the way through like my third attempt, but I didn't get any credit for completing the challenge. So in the next few days when I get my Kroguard to 20, I will attempt this gold solo again. Wish me luck, and #blogfaqs.