direct me to a game made in Blitz3D, that is comparable to... say the original Medal Of Honor
There's nothing even close.
This and most other game programming communities is full of people that plan to deliver the earth - but unfortunately never seem to get beyond a few screenshots or half complete "opening levels". Finishing a game in Blitz3D that even had half the levels and content of the original Medal of Honor would be a fantastic achievement.
Of course, Medal of Honor had a lot of people working on it, and most Blitzers are bashing away in 1 or 2 man teams, and usually in their spare time, so it's to be expected really.
Don't get me wrong, I'm not taking a knock at the Blitz community. There are some VERY talented people here, but until some of them band together I don't think we'll be seeing a truly great Blitz3D game anytime soon.