Yeah, just found this trailer from 1998. Valve had thought to give animations to Gordon Freeman like a crawl move from Castle Wolfenstein, but they took it out. Other parts, such as the guns being able to take out the huge monsters were taken out because of time constraints.
So the first game could have been 10x as good with these features. Luckily, James Benson found this trailer and put it up for all to see.
What do you think, guys and girls?