Completed it for the first time today, and it was fun. I liked it more than its "Illegitimate child" named Gears of War 1, to be honest. Really solid gameplay mechanics, innovative for its time. It aged quite good too, nothing junky or infuriating like inverted stick movements or tank controls. It has a well-working cover system, partial health regeneration (in 2003!!!) and a more or less modern controls scheme. There are no checkpoints, but the levels are really short. Difficulty is smooth and fair, without spikes and deaths that feels cheap. Graphics in Xbox Original are dated by 25th standarts, of course, but for the game that came out before the first Call of Duty — quite good, quite good indeed. Story, characters and designs are basic and generic, but the gameplay is the main dish. Overall, it's a short (too short), but sweet little game. Will gladly buy it on PC just for the collection.