One of the first 3rd Person Shooters that doesn't rely on a cover mechanic system. I think the best way to describe this game is to say that it's like Gears of War. But that only applies in the broadest sense, because Gears is all about cover-based shooting, and Space Marine is all about taking the combat TO the enemy. In Gears, if you get hurt, you hide behind cover, suck your thumb for a little bit, and then when you feel better, you get back to fighting. In Space Marine, if you get hurt, you have to become even more aggressive and begin executing enemies or go into RAGE mode. Everything about this game screams aggression, but... later on, you have to fight smarter too. You have to know when to wade into the fray, chainsword or thunder hammer swinging, and when to engage the enemy with ranged weapons, and you can change on the fly between ranged and melee combat. It gives Captain Titus of the Ultramarines a more competent feel, like he is supremely capable of dominating the battlefield, as a Space Marine should. I ran through the game once already, and now I'm doing a playthrough on Hard difficulty. I enjoy this game quite a bit. I also enjoy unlocking new armor for my virtual barbie Space Marine in the online multiplayer.