Halo Wars

To obtain this set up a 3v3 Skirmish map and chose any 3v3 map. Set the AI difficulty to easy. Change the mode to Deathmatch because it will be allot easier and faster. Choose a Covenant leader (Because I find them overpowered) and set the others as anything you like. Now build a Airplane trainer, Vehicle trainer and Shield generator( just incase they do attack your base). Get 2 Wraith's, 1 Locust, 2 Vampires and a engineer bot and then go destroy enemy base's! It shouldn't take to long (Roughly 10 mins) and then when all the enemies bases are destroyed you will win the round and get the achievement.

Frozen Valley as it should be symmetrical layout and is quickest! Also there are lots of rebel bases which makes killing stray units easier! :)

-Setup vs 3 Arbiters.(on easy)
-Turn every positive skull on (Catch and below)
-Spam warthogs into the middle enemy base(Till max pop), when most of them start attacking it, place a heal down to make it easier. Save MAC blast.
-Turret up your base, build a couple of Supply pads and about 3 air pads(Optional).
- After about 3min, the middle base is destroyed, send all hogs to one of the side bases (Leaving one behind for base-build's wait time)
- MAC blast second base and put heal down.
-Fill new base up with Air-Pads and 2 supplies.
-Spam Hornets and when 2nd is destroyed, spam 3rd base with everyone. (Heal down when you enter as base "may" be established) and create a base on base 2. Feel free to MAC 3rd base, I completed it before it charged though.

- Usually there are units wandering, most your AI should eradicate them, if not... steam-roll the map.

Tried this twice in a row and averaged 5:30

To those of you who don't care to cheapen your way to the achievement or simply don't have the time to play a full skirmish match just start a game against one other person. When the match starts whoever is going for the achievement doesn't have to do anything. Just have the other person destroy their base and their starting unit and the game will end. The person who didn't do anything will get the achievement. Just set up another game and have the remaining person get their achievement and you'll both have it in about 3-5 minutes. :)

This does not need to be done online just in skirmish mode. set up a 3 vs 3 match and win. this can be done on any difficulty.

While this can be done in a single-player 3v3 Skirmish game, it can also be won online in a 3v3 Private Game with a second person (or second XBox) helping you. If you have a second box, you could also do it via link cable, though note that XBox One does not seem to properly link to a 360.

Your partner must be on the opposite team, and they must be the Prophet of Regret. Your own is up to your own choice. Make it a 3v3 game, select 2 AI for the remaining slots on both teams. Change the difficulty to easy to ensure the bots don't cause too much trouble. It's probably best to keep the mode on Standard, again to keep the bots from causing too much trouble, although you might have some success with Deathmatch.

The Prophet of Regret's special ability is the Cleansing Beam, which costs resources to lay down hurt. It does NOT distinguish between friend or foe. That means your partner can move to one of his own AI teammates, aim at one of their buildings, press , and destroy it. This gets expensive, especially to try and take down the central base, but anything in the process of being built goes down quickly, and you can take out warehouses to set the AI back.

So the goal is for your partner to build a Temple to get the Prophet, then a bunch of Warehouses to get income. Upgrade them to Blessed Warehouses when there's decent income in-between blasting buildings. Also send the ghost out to supply crates to help with income, and to deny resources to fellow AI. When possible, take out warehouses and other buildings. If a building is being built, target that first as it takes extra damage and the resources are lost upon destruction. And if you spot their scout unit or any other partnered units, blast them as well with the cleansing beam.

Meanwhile, build up your own base. Aim for units that do extra damage to other buildings if possible, as you're still going to need to help out with destroying the central bases if you want the round to end in a decent amount of time. Go over, help out in the destruction of both enemy AI's. Then have your partner self-destruct their base and then kill their prophet (or wait the minute for the loss condition).


Congrats! With your partner team-killing his AI and ruining their income stream, it's just a matter of destroying the bases.