I have only a few fights left in sector 5 and will get the max rewards crate. For the last remaining points I can choose between a couple of boss fight feats.
The purple discs certainly helped because I could run my squads at very low stamina levels. And a couple of feats were easier. But they are not necessary because overall the difficulty was moderate. Definitely not as difficult as I expected.
I won’t complain about it. The game mode is a nice addition and the rewards are really good. I have 3 GL at 6.7m GP. Next time I’ll try do hard mode with as few energy refreshes as possible.