Just like EVERY id game EVER? If you don't like id games then you don't like id games. id games are not about overly complex stories, skill trees, loot, role playing elements (minus maybe the emergent style in Doom 3). They are simple, precise, fast, and visceral action games. Plain and simple. If you're looking for anything else, you shouldn't be looking at id games. Some of us love this sort of thing though.