The Heavy Champion was a repulsorcraft, equipped with 3 blaster cannons; 1 blaster cannon at the rear of the vehicle and 2 frontal blaster cannon.
These units saw action during the Capture of Harte Secur alongside Champions (the Heavy Champions predecessors) to protect the Harte Secur's command center when OOM-9's invading forces attacked the city. However, most of the Heavy Champions were destroyed.
In the game Star Wars: Galactic Battlegrounds the model is a Mech Destroyer and only appears in the second mission of the Trade Federation's campaign. In the standard game, the unit is not available unless the player turns the usual technology tree settings off.