LOL I play quite differently when teamed up. Walls I use to funnel traffic if I'm solo, so I can at least restrict my attention a little bit to focal points. My attention is usually on different things in team play.
The bug you saw where the commander keeps shooting at the ground after the Uber cannon goes off seems related to the new feature that keeps the target focus even when you give a new move order. Try ordering it to stop after the uber cannon and see if that fixes it.
I cant do comments on Twitch from my office so ill say it here "For the love of Robot Kind, Repair your commander, brad!!!!!"
Fast and furious playtest this evening. Neutrino, Scathis, Metabolical, an AI, and me. Neutrino wins in a final gunship snipe on me. Drat!