Set to enter regular matchmaking next week, the developer says Doubles will add a number of more "intimate" competitive modes to the game.
The first is Infinity Slayer, which puts two teams of two against each other, allowing instant respawns and radar, along with Ordnance Drops at the 70 point mark. The first team to 300 points wins.
Doubles Pro has players picking from preset loadouts, strips out radar and Ordnance Drops, and cancels instant respawn. The detailed loadouts can be found on OXM.
Finally CTF Doubles allows for custom loadouts and radar, and respawns take 10 seconds. Five flag captures equals a win, and flags don't need to be back at home to score, making for an offence game.
The Team Doubles playlist includes slightly modified versions of Haven, Abandon and Solace along with a selection of the best Halo 4 Forge mode maps.
This week's new Specialisations are Rogue and Tracker, which you can see detailed below:
Rogue: Spartan optimization for single-operative missions which require a lone Spartan to be deployed on their own for incredibly long durations of time, even years if required. The Stability armor mod allows users to increase their aiming stability when being fired upon.
Tracker: Spartan optimization for long-range target tracking (trans-continent and off-world), particularly in scenarios where conventional tracking has failed or such a substantial time has passed that the trail has gone cold. The Requisition armor mod allows users the ability to recall their own ordnance requests in order to acquire more helpful weapons in the field.