This pack is from level 1 to 55 if you are new to the game. Its important to be level 55 so you unlock all base game items and kill streaks. This rank never resets with new season! Only seasonal rank from 56-155 resets!
This pack is from level 56 -100
After level 55 you are promoted to Officer rank progression track. This Seasonal ranking system includes rewards such as weapon blueprints etc
This pack is from level 100-155 max ran in Call of duty Moder Warfare 5 star General V where you unlock special rare blueprint for max level . And with each rank from 56-155 you unlock a special Officer Challenge. Similar to Daily Challenges In addition, you are granted a special Seasonal Ribbon.Earning 10 ribbons gives you a special Season Emblem, with each additional 10 ribbons evolving that emblem.