First off, is the story, or lack thereof. Yes, I know that it's not necessarily the focus here, but I've quite enjoyed playing through the campaign mode of these first person shooters, especially the Halo series. The story is here, but it feels like it's officially in the backseat here, with the focus being on the "open world" concept that they've built here. The world is impressive, and I'll talk about it more later. It just doesn't feel like anything is happening on the main story campaigns, perhaps because I'm encouraged to go into the overworld and do side-missions and patrols to help level my character so that I can, in fact, progress through the story without it being overly difficult. In those patrols, I would revisit areas over and over, then again (or previously) in story missions. The big open world feels a bit smaller when I've gone there a few times already. This is exactly what happened on the Moon, where I performed the first mission, then did a dozen or so patrol missions with my friend. We went all over the place and yes, it was great fun. The next day I would start a story mission that took me into the exact places I had just explored, but they were now filled with different enemies, narrative and cut scenes. The oomph of the story - of the reveal - was diminished.
