Graphic game with alright gameplay.
Good thing: Doom 3 has absolutely beautiful graphics. It's that good that it's comparable to current gen games and even better unfornately than games today. You can see detail from the tiniest ammo shell to bullet holes in the wall. Blood is also a great factor and boy is the game good on that Character faces look great .
Bad thing: The graphics are great but cheap scares don't get to you much anymore later in the game. Basically in the beginning you get a little shaken up by the surprise attacks and monsters outta nowhere but once you get past a couple levels as the story fleshes out it seems to be just some silly demonic invasion with and unorganized attack plan.
Good thing: Sound is incredible and very effective way to scare. Yes the sound is great pistols sound great shotguns do too. Your zombies groans and your demons cackle and your imps scream.
Good thing: Some of the levels were cleverly designed to fit with the atmosphere and story. It's not just go to this room and go to room 3. You got all these vital functions to a Mars Utopia. The levels have a feel to them.
Good thing: The game does a good job on introducing you to monsters. Some of the monsters are very creative. Though some of the monsters are missing in the later levels(zombies).
Bad Thing: Your loaded with a great aresenal of weapons but other than that theres no compelling reason to use them all. The machinegun is obsolete when you get chaingun ammo. The pistol is basically useless after a couple levels. I don't need a rocket launcher when I have a BFG.
Bad thing: The storytelling was god awful and took me a long time to understand it a bit. It is told through small in-game cutscenes of video cameras and air ducts? I'll explain the best I can:
Your supposed to be part of a squad sent to check up on UAC science facility. You are part of the UAC security force. Alot of crazy stuff has been going on. Ghosts voices in the wall you know the rest. There's a Governor Swann sent to meet the head scientist Dr. Betruger. Hell comes over blah blah. But the weird thing is it seems Swann and Betruger knew hell was coming over before it did. They seemed to calm about it.(There's nothing calm about headless zombies and blood and gore everywhere). In the end Betruger is said to be some pyscho mad scientist who wants to destroy everyone for no reason by using his demonic horde of minions.
Bad thing: The game is madly dark. You can't appreciate graphics when you can't see everything. The blood and gore get's in way of some of the puzzles you have to solve...
Overall Doom 3 is just a shoot em up with good graphics and there's nothing wrong with that