SPAZ, or the Special Purpose Assault Zeus, is complete laser vomit. Use the Stock mech's Ferro, Upgrade to Endo and DHS, and ignore the terrible missile quirks, and you can tank with your entire right side.
Extremely precise and can hug cover extremely well while using all 3 ER LL. This match was with only the 2 basic upgrades - twist speed and anchor turn. I'm using the 2 ERLL modules and radar dep. Just remember you're a sniper with a lot of armour.
My favorite fully kitted version of the build. The Missles in the arm allow drive bys and well, it doesn't need that much ammo. I'm in the back most of the time but eventually close when they get too near. Love this build basis.