That mod is intended for CO-OP and CAN be played solo if you want. Devs are emphasizing co-op and that's why they made the mod for zandronum.
I had a question while playing one wad as Heavy. Why exactly you gave him a family business for a SSG? I'm just failing on to notice it's benefits.
Benn talking about BYOC while playing splatoon and then "Damn, imagine an inkling as a class for byoc".
Is it just me or with byoc every first episode transition is the default "demon infested starport" in other wads like Equinox and others.