Just tested this out and it is awesome! However, there are some issues of which two are crucial.
(Crucial) 1: On Lakeside, the Titan, when bought, walks diagonally out of the WF, gets stuck and eventually falls on it's back making it very hard (if not impossible) to get it out and is prone for destruction by another bought vehicle. Is there a way to make it spawn at the WF's platform instead of inside?
2: Titan currently inhibits the APC slot while it should inhibit the Medium Tank slot (because Titans are supposed to be the successors in TS)
3: Tick Tank, likewise, is supposed to be inhibiting the Light Tank slot
(Crucial) 4: The Advanced Buggy's 30mm cannons are -stupidly- strong against -everything-. Is there a way to nerf/boost damages in this mutator by including config lines?
If the two crucial ones can be fixed, I will happily create a poll on Comis on implementing this mutator.
EDIT: For the Titan one, you can also think about pushing it in a straight line while collapsed like in the following link: http://gfycat.com/UglySandyBats