At the end of the season, three teams are promoted to Serie A and four teams are relegated to Serie C. The top two teams are automatically promoted and the third place team is only automatically promoted if they are more than 14 points clear of the fourth placed team.
Call of Duty: Mobile's "Free for All" mode is similar to a battle royale concept where you play solo and the objective is to achieve the maximum skill. Unlike the ranked or random multiplayer games, the maximum kill is 20. On other modes, it's 40.