Question: sniper elite 4 how many ranks?
Answer: These ranks are 5, 10, 15, 20, 25 and 30. You start with the rank of Private (1) and gain XP with each kill. Some kills will be rewarded with more XP than others, of course, but all I can advise is: playing coop missions is your friend here, for that's actually the easiest way of gaining XP.