Terraniux often releases an empty map when he's working on a new project, let players get a feel for it while he keeps working on it and decides what monsters should go where.
His newest work in progress · http://crystalunreal.com/Downloads/Afte ... review.rar
He placed only 1 monster on it (with like 50 health) for anyone who felt they needed to shoot something... which I edited to make it a tiny bit harder:
This isn't the version at the link, by the way. The link is his original, for which he'd like suggestions and critiques on.
I can link him here if any show up.