The Helioses in this level is tough. REALLY tough. Unlike normal, which was fun and easy, the level is beyond hell difficulty to 3 star. I can beat it, but i cannot maintainall team to stay up alive even if they are all platinum and near 10 stars.
The only thing I find difficult about this is the 198k damage missiles which hurts more than 5 Panzers combined and the Hp is literally a submarine