One of my recent faves is The Rat Race. It does seem this was modelled after Roundup at the Mordheim Corral, but I haven't had an opportunity to play through the latter yet. Spawn Hunting can be fun as well. What these scenarios (and Man Hunt) have over the original Monster Hunt is that the targets aren't pinned to one location.
Others I'm wanting and waiting to play are Race to the Stash and The Writing on the Wall.
The Rat Race: http://docs.google.com/Doc?id=df3xkgcf_45cppch4gs, from Jim Weaver's site (http://hobbyblog.wargameweaver.com/mordheim).
Roundup at the Mordheim Corral: I found this in a "Ones That Almost Got Away" article, but the original mag/site isn't referenced in the article - it's by Andy Tabor, so maybe he can provide the original mag/site.
Race to the Stash: Fanatic Online 73
Spawn Hunting: Fanatic Online 86
The Writing on the Wall: Fanatic Online 75