Supreme Commander 2

Very simple way of doing this, plus you can Knock out the play on all 20 maps achievement in the process.

Start of with the 1v1 maps. Set it to No rush timer, easy AI, Assassination gametype. Then Simply build planes, ground units, whatever suits your fancy and go kill their ACU. Rinse and repeat for the rest of the 1v1 maps.

Once you are threw with the 1v1 maps, start the rest of the maps, and use the same settings except, make the other slot(s) for the AI on your team. That way you literally have to sit there and the AI will win it for you. Set the AI to the same time with "AI:Cheating" for his difficulty. Takes anywhere between 3-6 minutes per map, depending on size, how many AI are on your team, etc. I watched a movie and just switched back and forth between the game to set it to the next map, super easy.

**Also Note that you can Knock out the "Dating" and "Committed relationship" achievements while doing this if you play with the same faction for every map.**

Once you get through all 20 maps, just play on a 4 player map and put 2 AI on your team against 1 EASY AI on their team.

Any comments, or questions PM me or send me message on XBL so I can modify this solution as needed. Cheers

FOLLOW THIS GUIDE AND YOU CAN GET THE "SUPREME ONLINE COMMANDER" ACHIEVEMENT AS WELL.

z RagnaroK z's solution is what I followed, but wanting to post this as my boosting partner and I came across some issues.

I'm guessing since this title is now GwG (March 2016) - There is lot more people playing.
When following his solution, we teamed up about 50% of the time.
We came up with a solution to change our Location via Xbox Settings.

The same game plan applies - Find a boosting partner, go to Ranked under Xbox Live.
We noticed that (even changing location settings) if we didn't pick a certain game type, we were less likely to match up. So make sure you both pick the same game type.
When the game starts, the person giving wins simply quits the game.

FOR 360: Head to the "Settings" tab - Go under "Family" & make sure that setting is turned off. Next head under "System" - select "Console Settings" - select "Language and Location" & finally "Location" - This is where you pick the region you want to be in when matchmaking.

For Xbox-One: Go to "Settings", Select "System", Select "Language & location."
Now select your new location from the list, and then select "Restart now!"
You must RESTART the Xbox-One.

The locations that worked best for us was: Singapore & South Africa (South Africa being a bit better). Although your free to chose which ever you feel might be less populated.

After changing these settings and attempting to match up again - We went from 50% match ups to about 85-90%!