Counter waves and on screen enemies should stay there to be defeated when the castle's destroyed (on both sides). No greater anticlimax than when your game suddenly ends because the enemy castle's destroyed, while you're about to stage a mass attack to destroy the enemy counter wave...
When I got to the hero part of the tutorial, I think it didn't tell me to click somewhere, and I ended up left behind :( Please give an option to delete your game and start again (with confirmation) 2/5 until this is sorted out