http://www.tumblr.com/photo/1280/igotpolo/16505524613/1/tumblr_lye0iuQwxi1qlzuyj

Not under mobat variations

YOJOE.COM | Cobra C.A.T. II (http://www.yojoe.com/vehicles/03/catII/)

It's listed under "Vehicle Construction" on the MOBAT's page.

That's a CAT II tank from 2003, a KayBee exclusive.
It's listed under the MOBAT's Vehicle Construction as a re-use of the mold.