(adsbygoogle = window.adsbygoogle || []).push({}); I think they should do a zombie map when your down a infected mine pich black and the debri is rubble mainly and when you shoot its the only light until you find the power and the power switch should be in differnt places each time the perks could be the same just less to pay and there should be lots of tunnel systems going into differnt places and the further you go the darker it gets and the teleporter etc could be the shafts going from level to level and lots more to the story line

-Kozmic_Tyrant =D