343 Industries' boss Frank O'Connor has responded to fan concerns over the length of Halo 4

“ The main campaign is substantial and will compare favorably with previous entries in the series.

Loading

After yesterday's achievement list leak pointed to the game containing just eight missions, O'Connor explained on NeoGaf that this didn't reflect how long each would be.His words were then added to by 343 Industries' designer David Ellis (as lybertyboy) who claimed that "[Spartan Ops] season alone is longer than [Halo 3: ODST]."Spartan Ops and Campaign are completely separate teams. As Frank mentioned earlier, the main campaign is substantial and will compare favorably with previous entries in the series."Spartan Ops is a new story-driven game mode set to feature in Halo 4 and will replace the Firefight mode that appeared in Halo 3: ODST. Gamers can play it on their own or co-operatively with up to three other players, and the first Season of Spartan Ops plans to deliver five new objective-based missions and cinematics each week over a 10-week period. It's this content taken in isolation that Ellis has claimed will consist of more content than Halo 3: ODST.So it seems if you were concerned after yesterday's news then there's no need to panic. Halo 4 launches on Xbox 360 on November 6.

Luke Karmali is IGN's UK Editorial Assistant. You too can revel in mediocrity by following him on IGN and on Twitter