Multiplayer ranking in Halo 3 consists of two components; Skill and EXP. Skill employs a 1-50 ranking system for ranked playlists similar to the ranks included in Halo 2 multiplayer, while EXP ranks are military-style ranks designed to show a players experience in playing Halo 3.

How does a ranking system work?

Equivalently, each items ranking number is equal to the number of items ranked equal to it or above it. This ranking ensures that a competitor only comes second if they score higher than all but one of their opponents, third if they score higher than all but two of their opponents, etc.

What is Max rank in Halo MCC?

100 million Max rank should be 100 million.