Hi there,
Last month I read this: https://42amsterdam.net/samforum/showthread.php?t=1339
And I would ask something similar for the Shotty Complex server.
I think Normal difficulty should be better in a very small map like Complex, this because on Serious diff damages are 2x than their normal values and it's unbalanced (principally because the armors are useless, and a hit from a long distance is -20hp instead of -10hp). Second, could you set a frag or a time limit? 30-40 frags (like Shotty Trouble) or 10-15 minutes should be ok.
Thanks for your attention.