S-Tier, A-Tier, B-Tier are the tiers for the most important tournaments on this wiki. They are categorized as follows:
|Name||Typical prize pool||Description|
|S-Tier||$200,000+||Tournaments with only the world's elite teams. Finals of S-Tier tournaments are international LAN-events. They require an extensive qualifier system to make sure only the top teams can take part. Events that are sponsored or officially backed by Activision including World League, Call of Duty League, World Championship and XP count towards S-Tier|
|Tournaments with top competition, however a less strict qualifying system than S-Tier, for example by open qualifiers. A-Tier tournaments can, but do not have to include a LAN-step, but require substantial regional impact in a significant region.|
|Tournaments with mostly top competition and/or unusually high prize pools. Tournaments with relatively small prize pools and less overall importance can be B-Tier if competitors are expected to be majority top level in their region. B-Tier tournaments need to have at least some regional impact. Domestic tournaments can be B-Tier as well, however only if the country in question has multiple notable active players close to the top level of play.|
|Tournaments which focus on a region’s or country's bubble scene and small prize pools, but that are not part of weekly or monthly events.|
While the prize pool is an important factor for categorizing tournaments, it does not equal a specific tier. Higher tier tournaments require a higher level of competition, which, if not met, can cause a tournament to be tiered lower. For example, a hypothetical $75k tournament with no affiliation to high level teams participating is not A-Tier, but B-Tier at most. All tiers are up to Admin discretion.