To Snipe34,
Bugs Bunny as your Trader... previously.
Right. KF-Hallway has an Alien as a trader. What the heck do you call that?
Theme is an important part of games, and literature.
Okay. I hear you. Be particular. KF-Huygens has a spaceship. But I liked the map. I even made a video of it for the custom zombies - http://www.moddb.com/groups/killing-floor-ut2004-klub/videos/killing-floor-custom-zombies. Consistency is the word.
Theme is complex, for example new batman and olde batman - small difference, but actually an enormous difference. Comes down to the eye, like any picture,
does it look right? Weighing that difference makes or breaks a theme.
To identify theme, I suggest you to write down KF theme components like a list and see what you're missing /adding.