Tank Engine features basic tank movement on randomly generated terrain. The terrain can be modified in real-time, as shown in the above video and the demo below. The terrain generation is customizable and very easy to change to fit your needs.
You can try a demo of this asset right here: https://dl.dropboxusercontent.com/u/54904233/Destructible%20terrain/index.html
Thanks for taking a look, and if you have any problems with this asset, feel free to email me at firstname.lastname@example.org.