What is "team 2v2", how it differs from "random 2v2" and how to enable it?
Solution 1:
'2v2 random' mean that you will randomly be put on a team for each ladder match.
And '2v2 team' is where you are partnered up with someone and you stay their partner throughout the ladder. Most commonly a friend. The only way I believe to set this ladder up, is to have your partner be in your party before starting a 'Quick Match'. You will get placed in different ladders with different friends, meaning you can be placed in several '2v2 team' ladders.