Aside from raw meat, I would recommend searching the bloodsplats, you never know if they cover something.
[EDIT]
Thinking about making this open-source once it's done. Of course it's freeware just maybe it'd help people who want to do a simular thing since Visual Basic is the first thing that gets taught at school in programming now.
[EDIT2]
Almost done that bit now, a few more scripts and I'll put in some 'easter-eggs' in the bits that haven't been finished yet for obvious reasons (the load feature isn't, every level needs to be made before that will work). Why put in the easter-egg stuff? Because I can, and I'll put up a public TEASER for the moment containing whats done, so you can judge if you like how it works.