Droids C-04 are combat robots commonly sent on demolition missions although their Cyclops models are useful in defense missions as well.

Disc #1363 the red disc contains memories of Kynaston XI about himself falling victim of explosion, being saved by Arcturus Mengsk by changing Kynaston into a cyborg and Kynaston having to serve the emperor while hiddenly plotting against Arcturus Mengsk somehow for original goal of Kynaston XI was to conquer Augustgrad and take over entire Terran Dominion as a new ruler and supreme commander.