Enough to get me sold on this series, but definitely clear that the next few sequels are going to be a good bit better. The level design is my big issue here, felt kind of repetitive. A lot of hallways that feels the same, a lot of fights that feels the same. I've played shooters that are way more unique in their level design, and I've found that this is a key element to make them engaging. Because otherwise, some parts just feel monotonous.

Still the core gameplay is very fun, makes me want to try some multiplayer for this. I liked the game more than enough to complete it and would say it does way more right than wrong. Completing this just makes incredibly hyped for 2, 3 and Reach, which all should be awesome.