What a long mission!! I was thinking after each wave towards the end that it was gonna stop, but it just kept on going. It would be even more safe if I had my health fully upgraded to 200% as opposed to 180%. Also going into full 5 Repair Nanopaste as well with plenty of sub-weapons would help too. I got through it without too much of an issue I'd like to say. I quickly found my own playstyle that allowed me to cheese most of the fights. I'm just glad I pulled it off on my first try!