The rank emblem signifies your skill in the game.
It is a reflection of all of your stats including your kills/down ratio and average highest round. Your total games played and total play time do not affect the rank emblem. You can't lose your rank emblem for not playing. Surviving to a high round can affect the rank emblem but the kills and other stats you earned from that game can affect your rank emblem more effectively. You can only derank your emblem by
going down too often on lower rounds. Being deranked for leaving games on low rounds (with no downs) is unconfirmed but is definitely possible if average highest round is factor in the ranking system. To rank up your emblem,
try to accumulate many stats such as kills, revives, opened doors, perks drank, headshots, and more. But more importantly, you need to maintain a high Kills/Down ratio and high average rounds survived. The K/D ratio is what stops many people from ranking up to Shotguns. A person could have less stats in all areas and be a higher rank than you if their K/D is higher. WHERE CAN I RANK UP AT?
You can rank up in Classic/Survival games but you cannot rank up in Grief/Turned game modes. Classic games are Tranzit, Die Rise, Mob of the Dead, and Buried. Survival games are Bus Depot, Town, and Farm. All Classic/Survival games fall under CO-OP STATS and all Grief/Turned fall under VERSUS STATS. CAREER STATS is a combination of both to show your overall stats, and that goes the same for what stats are on the leaderboards.
Players have been able to reach the Shotgun rank from playing Custom Games alone. A custom game will records all stats except your highest round achieved which will not be placed on the leaderboard. It does not make a difference toward the rank whether you play solo or with friends. The rank emblem should update right away after the game ends.
Press your right arrow key at the main menu after clicking Online to get to your stats.HOW DO I KEEP MY RANK?
Play well every game of course, but try not to ruin the fun by being a K/D ♥♥♥♥♥. If you feel like you're playing badly every game, hit up a solo game on your favorite map and go for 1000 kills 0 downs then end the game. (I recommend Die Rise, very easy) If you can do it properly, this will pad your stats and prevent you from getting deranked in a bad game.CAN I RESET MY STATS?
No, there is no *official* way of resetting your stats on Zombies, only Multiplayer. You will have to make a new Steam account if you to start fresh. My advice is to work on the stats you currently have so if you ever finally rank up, you will be much more proud of it.