1, 2, 4, & 5: Sorry bro, but it's already confirmed there will be no offline firefight in halo 4.
3: I've always loved the idea of this. If they could include it, it would really be great.
6: This would be rather difficult and time consuming. To forge a map from plain empty space would be hard.
7: They are keeping a similar system to reaches armor customization. The "Credits" though are
now called "Spartan points" (placeholder name)
8: We have discussed this before... But 343 had said there will be more detail in color customization all around, which I assume includes visor.
9: Sorry, no bubble shield either I know lol... Not sure about other AA's, except forerunner vision.
10: I'm sure they will include some map remakes.