As far as I can tell, nothing has been wrongly done other than stating that Wolverines have legs.
According to the wiki and Exhack's old concept art for the utitly machine, it was stricly a hovering vehicle.
Also, I would like to state my view that piloting a Wolverine and piloting Nepleslian military powered armor is a different experience. Powered armorsuits act like second skins, in a sense, while Wolverines are more along the lines of driving a bulldozer, or a crane. It's two different experiences that most people shouldn't have experience with.
I will leave the decisions to how well your characters can pilot the Wolverine, but recall back to creating your characters, and the fact that the Vehicles skill was available to them during conception. It was there for a reason. : D