Why Not 4 Downs

[Eakin]

Ok so I was thinking about the mod and it's call the America football mod but in American football their are 4 downs so just wondering why their is not a 4th down like a punt or fg type thing you can fg on 3rd down but they don't do it in real football so would their ever be a chance of seeing a 4th down or do you think no one would ever punt the ball or just take a fg