Bug Hunter by Hammerstein NWC. Interesting decal use on this one. I wonder what the third party parts are. You can ignore the minifig.
Carnage by 1000 Nuglets. A little tall for MFZ, it exudes style though.
Reaper by Nate_Daly. This is the inspiration for the previous selection.
XR00 by 256imageworks. It's a Chub variant. Still, looks nice.
Major Max Solarflare and "Machete" by Hammerstein NWC. Once again, ignore the minifig.