the campaign is mightily impressive, and never really feels like it's getting out of control or excessively absurd. The obvious urgency to find your friends does give an incentive to press on and play more, and the gratefully received "just one more mission" feeling is here in full force, making early bed-times a thing of the past and no doubt prompting much eye rolling from your significant other. My only real bugbears with the main campaign is the way the game is saved at certain checkpoints, and a slight lack of flexibility mid-task. During a mission there's no way to save your game manually, meaning you're relying on the game's own checkpoints. With no easy way of knowing exactly when the game is being saved (or at least, no obvious way of knowing where you'll go back to if you quit) it can be a little frustrating when you have to quickly dash off and find yourself 15 minutes back in the mission. The game is also a little touchy about exploring while you're on the job too, and if you notice something interesting in the distance on your way to a certain objective, you're not allowed to go roaming off without the mission being aborted and having to start it again. It helps to keep the story on-track, but it'd be nice to be allowed to go and activate a nearby radio tower while I'm thinking about it instead of having to come back later. But these are two