We have 2 cheats and tips on PlayStation 2. If you have any cheats or tips for World War Zero please send them in here. You can also ask your question on our World War Zero Questions & Answers page.
I have another hint that may help you.
When you're on mission three, LOOK OUT FOR THE DOGS! Because they have an explosive charge that is set to explode when they come close to you. This causes massive amounts of damage so BE CAREFUL!
Just before you start a mission, look around and explore, I've done this before and I sometimes find cool weapons lying around!