Team ranked incorrectly matchmaking

  • Game Version: Heavenly Spear DLC

  • Build Number: v.100.1849472.0

  • Platform: Steam

  • Operating System: Windows 10

Issue:

Ranked games will match extremely imbalanced teams (sometimes > 200 average elo gap between teams), where simple player swaps between the teams could balance them. This is likely caused by a missing step in the team matching algorithm in which, for a NvN game, the group of 2*N player groupings (premade teams included) are arranged to optimally balance elo. This step can be skipped when a game has a huge player-base, because the large numbers tend to allow teams to be relatively balanced on their own, but should technically be included. For a smaller player-base like AoM, or during slower periods in the 24-hour cycle, the problem shows itself.

Trigger Event:

Ranked team game creation.

Repro Steps:

  1. Queue up for a ranked game, and look at profiles of players placed in the match. Sum total elo on each side, then check if a player swap could resolve the imbalance.
  2. This happens in a significant number of games, if not most.