Not sure where this goes... Thread - Zombie Colony mod for Half-Life 2

It seems like feedback.

Overall, this is a really great mod, it's been something i've been looking for my whole life, since i've been unable to.. Program.

The problems i'm having here, though, which makes it impossible for me to enjoy the game and forces me to figure out how to make maps I make by myself are:

The Optimization. Every single zombie I see drops my framerate a bit. Any information on why that occurs would be great.

The Editing Tools. I tried to learn myself, i've mastered the director and it's related entities, but the rest I have no idea what i'll do on. (I decompiled the demo's .bsp in hopes of better understanding.. No luck at all.)

So, basically, what i'm asking for is:
Optimization. The bunch of zombies in the demo map kills the framerate for me.
Better understanding of the Entities. If the developer would be so kind as to make a tutorial for such things, like a simple base-camp, and to help me understand what the brushes do, (those zcfunc or whatevers), and the entities, that'd be great.

I'm more worried about Optimization though... :c