Halo 3
Halo Reach
Halo 5
Halo CE
Halo 2
Halo 4
I thought campaign of 5 was decent enough compared to, say CE and 2. Some of my favorite campaign moments now comes from 5. Best MP out of all, on my way to have more playtime on 5 than any of the other Halo games. Overall it's not good enough to beat Reach or 3 for me though.