Most the time, tanks go slow, i did it going 5mph or so in virtualized world I created from scratch .
I received your files and made a backup.
The software I use is Iclone 5.5(not 6.0) http://www.reallusion.com/iclone/default.html
I can provide the software to you through e-mail if you would like to examine it further. (with my custom content available)
I have no idea what to do from this point, got your .png and your .dae file.
IF you can provide me support with how to go through this process, it may work faster , but you decide whats next....
.pie to blender to CAD to sketchup to .iprop (iclone prop format) or: look at 3DXchange 6.
3DXchange 6 is the content superhighway of conversion into .iclone enviroment : http://www.reallusion.com/iClone/3DXchange.html
Once inside .iclone or .iprop I can begin specialized identical animations that are going to look amazing, I promis to integrate the old style with the new. It going to be amazing once we get your building's into an environment where I will learn how to enhance warzone over-all character and feel through the story telling part of this life long project.