Review for LEGO set 70704 Vermin Vaporizer from Brickset
“This is a rather impressive little set. (ok at $60 not that little). An Awesome 4 wheeled Green Team ground assault truck with what looks like an anti aircraft battery on the back. (The Alien Scorpinoid crawler things is as normal MEH.) But the truck gets better! That gun... More battery? Nope it's a full on Mech that hops down from the back. One of Lego's better Mech's at that.”
Full review at brickset.com