Do you have 3dsMax? I have some files that might help... DT801 Tank from DFX2, it show all the CB's and code Novalogic used to made the model.
(Actually it is most of the dfx2 3di files converted)
https://df-mods.com/index.php/downlo...2-3dmax-files/
It doesn't have the SOED code unfortunately, that one we got to workout our self.
There are a few good pointers on DFReload Forums about Tanks
http://www.dfreload.com/forum/viewthread.php?tid=2066
http://www.dfreload.com/forum/viewthread.php?tid=2063
But i assuming you have most of it figured out by now, looking good there buddy.