I was having a lot of fun with the Sniper Variant and my FireBoods, but I like having AMS and the LB10x is great for spraying at lights. I tried this out and first few runs averaged 1-2 kills, 4-5 assists and 500 damage.
I've actually tweaked this and substituted 2x ERPPC; it takes more careful heat management but it drastically increases survivability with lights up close.