How long does it take to finish call of duty 4-modern warfare and call of duty 5-world at war single player campaigns if I am playin call of duty or more exactly a war game for the first time...?
depends on what difficulty really
and how long you play it for in a day
once when I was so bored an had nothing to do at all I completed them both in one day on medium took me about 14 hours lol
and depends on your skill and you know where to go but cod4 for a few hours to me
few hours on easy, few more on hard