Art Of War mod is partial-conversion modification adding lots of new features to old Zero Hour's gameplay, they are discussed in summary.
General Lee don't prefere to use Overlord heavy tanks, as he decided to stop using them he faced the problem with other heavy and medium tanks: the battlemasters are not capable of stopping or example Marauders or Laser Paladins or Gauss-Mehcs. So the more artillery project of Ganger Tank was developed. Actually the Ganger is not a tank, but self propelled motor cannon carrier. It is armed with 350mm high-kinetic-energy cannon which allows it to deliver drastic damage to any kind of ground-based vehicles and even overlord-based heavy tanks. But Ganger deals less damage to buildings and are not capable of encoutering infantry or aicraft. When Ganger reaches third veterancy level it gains APFSDS shells to deliver even more damage to taks or vehicles, after every hit of these shells the target will be temporary disabled because of damage of important parts.
P.S. Ganger Tanks do not feature any Overlord-Addon upgrades
aren't APFSDS already kinetic shells?
anyway nice model