They took video game gore to another level
Reading the book "Masters of Doom" where John Romero was talking to Adrian Carmack (one of id's artists) and said "one day we will have gore in our games."
I like the ambition behind Brutal Doom after seeing that trailer but GOOD LORD he needed to do some Gamma Correction on that because half of the trailer was pitch black!
GORE!!! GORE!!! GOOOOOOOOOOORE!!!