Amazingly fun campaign and fun multiplayer. New players be advised, the game doesn't explain much about previous games.
Now the multiplayer is another subject entirely. It is a ton of fun, but it takes some getting used to for new players like me. It's not the same addicting multiplayer as COD but it comes pretty damn close.
The split screen multiplayer is another matter entirely. I really enjoy playing firefight with my friends. The online version takes away the excitement you have when your playing it offline.
So overall, fantastic campaign, that could work on explaining things better, with high repetition value. Plus a very enjoyable multiplayer that might take getting used to depending on the person.