[spoiler] 1:As soon as 'No elites in multiplayer' and 'no firefight' and 'pre-planned DLC' were announced, it was inevitable.
2:It's campaign, however, did well to portray continuity of story (H3's ending, legendary, REQUIEM was intended!).
3: It was rushed, so much unfinished can still be found.
4: It's not terrible, but it didn't live for long.
5: Let's hope they DON'T rush their next titles and make multiplayer NON-CANON, because multiplayer shouldn't be.
6: 'multiplayer canon' also made it fail, for such was messed up and canceled simultaneously, so no 'team names' or good gametypes (Dominion was great, but was removed unreasonably, no free armors (Fotus), no Elite/Promethean players...)
7: Reach still lives, so people can go back to a slower-paced game.
8: Halo 4 tried to recreate Halo 3's fast-paced gameplay but failed because it was using Reach's Engine, should've used 3's, the idiots. [/spoiler]
In the end, Halo 4 succeeded with it's campaign (and terminals, even without books you could understand if you checked the terminals and vids on youtube regarding it, Ur-Didact messed up by Flood to be EVUL).