I've played more multiplayer yesterday and today and I like it more and more. It feels like Halo but now it's fun to play. Very polished and balanced, gameplay is close to perfection. I can see many long time fans whining about it on forums, it's the same with every franchise when something changes.
Only issue for me so far is that stronghold doesn't have its own playlist. And I dislike slayer so it's annoying it's on rotation in team arena + own playlist.
For single player campaign, it's not Borderlands2Bioshock Infinite kind a masterpiece, but fun and polished gameplay combined with awesome cutscenes and music make it a superb game. I think score of 85 -87 is reasonable. For Halo fans it could be higher.