I don't know what's transpired between you and uber, however I don't think it's worth not getting your custom commander. I'm guessing they told you off at some point, rightly or wrongly, given your status as a higher level backer. The thing is, not submitting your custom commander is unlikely to be noticed by anyone bar those already following this thread so it's a pretty empty gesture, and I think it isn't worth throwing a good opportunity away. Honestly I don't really see what more you can do with tyrant beyond the armoury, so personally I'd submit that. Still if you really prefer not to, I liked some of your earlier concepts of tyrant that are a bit different. Also bear in mind that creative ip is somewhat more flexible than technological ip, so an exclusivity agreement on one model can be readily circumvented by making a number of adjustments to the design even if the core subject is the same, so submitting a version of tyrant shouldn't prevent you using a sufficiently modified version in another scenario.