If multiplayer map packs are free, what is the Season Pass for?
The Killzone Shadow Fall Season Pass entitles you to:
  1. an online co-op expansion pack that introduces a brand-new horde mode for up to 4 players
  2. three arena map packs for use with the online co-op expansion pack, and
  3. two additional multiplayer expansion packs that will be detailed at a later date.
The expansion packs and map packs covered by the Season Pass do not include maps for Killzone Shadow Fall’s built-in multiplayer mode – as we’ve said before, such maps will be released for free so as not to fragment the online community.