Puppyroach on 05 July 2016
I would say for SP storyline:
Halo 4
Halo CE (Close to number 1)
Halo 3
Halo 3:ODST
Halo Reach
Halo 2
Halo 5
For SP gameplay and level design:
Halo CE
Halo 5 (Close to number 1)
Halo 4
Halo 3
Halo 2
Halo Reach
Halo 3:ODST
And for MP:
Halo 5
Halo Reach
Halo 3:ODST
Halo 4
The MP is a bit lacking on my list but that is because I prefer SP, and have mostly played Warzone, Firefight and Big Team Battle in MP :).
