Maps can be found bookmarked on NicmeistaR's account in game on Halo 5.
The maps will be bookmarked as EDS, these are the maps that will be used and the game mode is also bookmarked as 2v2 Competitive.
Below is the order of maps to be played:
Round 1 = Plaza, Truth, The Rig
Round 2 = Truth, The Rig, Regret
Round 3 = Regret, Plaza, Truth
Round 4 = Plaza, Truth, Regret