That video made me sad for Doom, because the atmosphere of Doom is creepy, all the cookie cutter shit today in the FPS industry just doesn't convey a sense of fear and danger at every turn. In Doom you had to survive, ammo could run out, and you had to find health packs to heal yourself.
And whomever classified Half Life 1 and 2 as auto healing, no sir, play it. You still needed health pickups to survive, your character would not autoheal like the FPS games of today.
Also awhile back I played one of the Rainbow Six PS3 games (I don't know which, and I played that one like a full fledge run and gun, I could sit in a good spot, my health would refill and onward I'd go nailing more enemies down. That's not how the game is supposed to go from what I've ever seen.