I'm going to alter that level a bit as soon as I get the chance. Two kids now, plus a night job and a new Guild Wars expansion makes for a sleepy trickfred.
I will reduce the enemies a bit, and I have a simple idea for eliminating the 'fishing' trick, I just need to get around to it.
Honestly though, the player is meant to try and get through it as quickly as possible, and not try to kill everything, because I don't think that can be done without cheating/altering the level files.
Edit: I have four working directories for EW3. Not sure how that happened, but I'm downloading a file comparison program now, and will endeavour to straighten out my various unimplemented changes from the last few months, and get a new version out tomorrow as I have company coming over in... oh, 40 minutes. Where the hell are my pants??