You have to pass the main story line missions until the other sections of the city become unlocked. I don't think there's any cheat that unlocks parts of the city. If you're wanted all the time, find a pay 'n spray to have the wanted leve eliminated.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.