The Winter Wonderland 2016 Title update for Overwatch 2 has 4 achievements worth 60 gamerscore.
Kill 3 enemies while they are picking up snow in a game of Mei's Snowball Offensive.
Kill 4 enemies without missing in Mei's Snowball Offensive.
Win Mei's Snowball Offensive without losing a round.
Kill an enemy with a snowball from 25 meters away in Mei's Snowball Offensive.