343 Industries designer David Ellis has stated that the upcoming Spartan Ops DLC coming to Halo 4 in November will be longer than 2009's Halo 3: ODST.
Speaking on the NeoGAF forum, David Ellis, under his forum username 'lybertyboy' said that the "Spartan Ops season alone is longer than ODST." This comes after the fear that Halo 4 has quite a short campaign due to gamers noticing the leaked Achievements list only includes achievements for 8 missions.
Frank O'Conner, also on NeoGaf using his "Stinkles" username said, "the number of missions has no bearing on the length of the campaign. It's a Halo sized campaign. PLUS Spartan Ops etc.."
Halo 4 is dropping this November and you can preorder it at ShopTo below.