You could except it's clearly designed for co-op, much like L4D, Ghost Recon and The Division. That said, the core gameplay mechanics do look more interesting than your typical co-op shooter so it might actually hold up in solo.
This is false, stop spreading false information.
The dev has said here and on streams that it was not designed for co-op specifically.
Except It's not. The devs have said in discord easily 50+ times it wasn't designed for coop. It was designed with people playing both in mind. As a matter of fact it's harder in coop because more ammo doesn't necessarily drop and it's shared.
Yep.