Rank is not determined by anything other than rounds and downs. My one friend has the knife and he has only played custom games. He got the knife by getting to 40 back to back . It definite throws KD out because his is 25 and he hasn't played since he got the knife. No stat helps you rank up. Th. Reason everyone ranks up at different " levels" is just that. Stats are there for peice of mind but to rank up it's based off rounds and downs.
I got 233,866 kills and 1037 downs thats 225 K/D.
14334 headshots, 2219 grenade kills, 1127 perks, 773 doors, 1314 miles.
1006845 bullets fired and a shot accuracy of 5.23.
Guess what? I dont have shotguns! ... But saying that i did get my knife on 70 K/D.
Also i have my blue eyes from playing 5 days in a row so nobody give me that excuse you need blue eyes first to rank up. My theory to the ranking system is that there is a different requirement for each rank.
Crossbones - 1000 kills
Skull - 20 K/D
Knife - K/D between 70 and 90 (varies according to other stats)
Shotsguns - I have no ******* idea, like i said my stats great, my ratio is above 200, my eyes are blue, so what else can it be it has me puzzled.
Yes, you have to have a certain number of kills for each level. The knife is only around 12000 but the guns are higher....I don't have that yet but I have 18,000, 24,000 etc. The knife is a KD of 72. In fact, I literally was close, went to a custom game, killed 500 zombies, exited without dieing and poof I had the knife. I did the calculation afterwards and I was 72.124.
Its really a stupid system though. Because I typically kill on average 500-700 zombies at this point without dieing and last time I played I went to 1700 before dieing and I was the last one so the game ended. It is stupid because I let my daughter play on my account at first and she thought it was fun to die. I also was dieing right and left at first. So at this point, I could kill 1000 zombies everytime I play without dieing and it still would take me about 3 years of playing to get to shotguns. When I play currently, I out do all the other knifes and most of the shotgun people I play with when I look at my kills during the game to their kills. So therefore, I call it at stupid system. It really should only be looking back say for the last 24,000 kills and not your lifetime stats and in that case, you should be able to go backwards as well because the stats would be more real time. I'm a programmer and I would call the programmer who came up with this particular algorithm a dummy.
It has nothing to do with rounds. Nothing to do with revives. Nothing to do with custom or real games. Nothing to do with anything but k/d ratio and a "MINIMUM" number of kills required for each level. Also, I believe once you are at a level, you are there for ever...so you could start sucking really bad so your K/D goes back below the threshold and it still maintains your rank. It is a system that encourages people to rage quit.