Man I know it sucks the big One111!
No but really I was very disappointed when I found out that all the ichthyosaur could do was spin around in a circle in the fetal position or whatever. I would do anything for a mod that gave the ichthyosaur its HL1 AI back. I would make HL2 10 times better, (from my point of view anyway).
A scientists killing test chamber just isn't complete without the tangy zip of ichthyosaur!
If anyone knows how to code or knows of some one that could do this it would be single greatest improvement to half-life 2 ever (in my opinion of course).