Seriously. In this video game I can only assume that people are running all of the time. And they never stop running.
The run when they shoot people. They run when they're talking about stuff. They run when they're eating breakfast, they run when they're making breakfast. All the time running.
Also -- I feel like Halo 5's story is definitely heading in Metal Gear Solid 5 directions: in that I'm going to have no goddamn idea what is happening despite the fact I am a fan and have played all of the video games.
But that's okay. People are running and that cool Muse song is playing in the background. Everything's gonna be alright.