The current pre-release of the client ("pioneer" in the version) is only compatible to itself. So you can only play with other testers. Please be aware!
Commander familiars
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I was wondering if it's desirable, from a promotional point of view, and possible, from a technical one, to add small cosmetic flying units that accompany the ACU during the game. Here's a visual reference from a game called airmech that used such cosmetics to reward tournament winners, accomplished ladder players and other kinds of achievements and contributions.
https://m.youtube.com/watch?v=zD8JZ8Kje84&t=24s the transformer airplanes are the commander equivalent, and some of them are followed around by floating medals, trophies, angels, locomotives etc.
