[2019] Hero AI Definitely needs more polishing

Also we need to be able to select ALL heroes/villains in Instant Action. For Co-Op it makes more sense, but in IA, basically sandbox mode, we need ultimate freedom. Would love to see more than one AI hero on the field at one time, possibly a setting to set only hero AI in the game in the future. Customization for this mode is what's really going to determine how quickly it'll get stale. Let us create custom games like only infantry, only heroes, perhaps a limited number, but only vehicles? Eventually when all the Eras are added to this mode, I would love to see mixed eras on each map, along with mixed Hero/Villain AI on each map from all eras.