I find being a psycho pretty easily actually, if you're against the baron just focus on destroying his focus. The best way to do this is by upgrading Traumatize and bring two of them into the battle. Traumatize is pretty good in every single battle I have been in. By using shock coma and traumatize together, I completed the game without any training fights and it was on Herotics aswell. If you guys gets those two skills, I believe you would have a good chance aswell.