I have an idea. (for zombie mode). on counter strike is the blue laser mine (people can reach it, go through it, but the zombies take in life [is made only of people) and red laser mine (zombies touch you go through it, but if people touch it take the life [these are only put zombies])
A small thing ... When you die you look for example score 300 and a cross ... How you take it over again?? You must refresh the page until it is loaded again, and so on .....????