JUST AN IDEA.,.. karantin :D
if you played game i think the name was karantin... there you were a taxi driver in town of zombies,... so maybe such a misions :D
Like you drive tro dangerous part of city where there are atackers etc .. or maybe mision to retrive something so to chase some cars :D etc :D
there were a gun mounted on car if i remember etc.. but thats just idea.
and it looks nice.. i just wonder how it gona be with sound :D