- The biggest biggest must have for Killzone 3 is Splitscreen Co-Op. Just online or offline, I don't care. Just give us Split screen so that I can play with my brother and friends.
- Environments - More diversity. I loved many of the darker Killzone 2 locations but a bit of sunlight and a more lighter areas would definitely show more of the awesome graphics the KZ2 engine was able to show.
- Tone down the swearing. Especially by Rico and Natko.