I'm not doubting that Doom didnt put FPS on the map for the general public, but it was a just a gorefest.
" without Doom there woulind be any CS or Unreal, or Half life". There, you said Doom created the genre.
Yes, Half-Life story is generally like Doom's, BUT, the big difference is on how the presented the story which is alot different than Doom. Doom didnt have a story, not at all. There is not characters to interact with, there is no dialougue between characters, there is nothing that promotes a story. Nothing. All Doom was, is a great shooter. There's no story at all. Half-Life actuallty told the story, Doom story was just an excuse to killing monster that made alot of blood.
The first 15mins in Half-Life are not like Doom at all. It has dialouge, NPC's know you by name, there is no maps or statistics, there's actually a plot (barely), the level design actually feels like a real place. They are so many differences between both.
So how is Half-Life a watered down Doom, and a huge rip off of Doom?
Aside from the story.