Pros:

space!!!!!
space mechanics

Cons:

the last level is the only one that seems to be fun for me
 boring
hard to find paths
bland space textures
When you are in space you can jump over all the zombies without taking damage
space textures look likes a bunker

Conclusion:

I LOVE space but I thought this campaign would take place 100% in space (that would make it and auto 8)
needs some improvement but defiantly can be a good mak