Hmmm. It's probably possible in the code, now that the SDK is released - I googled it a few times, but I couldn't get the hits I wanted.
My google skills are not leet.
It's not going to be throughout the whole mod, just a certain chapter - I was hoping to give him something like 700 health so he'll at least last a good chunk of the chapter, unless you are very, very stupid.
Can anyone point me in a direction? I checked wavelength, but all the sites nowadays seems to be very HL2 oriented.