gotta feel for the guy kinda... here he is in ravenholm, a religious man trying to protect the people that have tried to seek refuge there from the combine.... here come in the combine who send tons of headcrab wielding rockets and pretty much turn all his friends and 'congregation' into zombies.... I would go nuts also....
I love Gregori, and I love the headcrabs being used a biological weapons. Cool idea.
"Aahhh, what's this, another life to save? I shall keep an eye on you my brother, more than that, I cannot promise!"