Representing Chile, Coustillier is active in the Age of Empires II scene. Across all ladders, Coustillier has played 109 matches. The majority of Coustillier's matches are in the ranked random map team mode.

Byzantines yields a 50.0% win rate for Coustillier over 30 matches. In the flank position, Coustillier has a 39.6% win rate across 53 games. Coustillier has worked their way to 834 in RM Team.

After 12 RM Team matches, Coustillier sits at a 33.3% win rate.