Challenge Gimmic[]
The main gimmic for this challenge is the sheer annoyance when the AI capture the "Stones" and will punish you with diffient affect mainly by either damage your unit, your radar, your wall, defenses, structure or your insanity and as you read in the main article, it does stack when the enemy capture more and more stones. The game will resolve into a wack-a-mole Scooby-Doo chase when you will want to capture all the stones before the AI annihilate half your armies then proceed to kill the rest of you. Even if you successfully capture all the stones and suffer heavy bruise like the Avengers does in Avenger: Endgame, the snap come with a cost: As you only have limited ammount of time to kill off all enemies remaining structure and bases before the "Frenzy" stage start at which the enemies will fight you very agreesively and your entire bases and armies is debuffed to only 10% of of your maximum health which make every attack from enemy a one hit kill, Thanos does not want his destiny unfulfiled.
General Strategy[]
It should be of no surprise that similar to Avenger: Endgame, to make this challenge work, you need 3 team, but this time, since Mental Omega would not do any time travel shenanigans, our team will not need to sacrify anyone like in the movie... If you are good enough.
Team 1: Hawkeye, Black Widow, Nebula and War Machine[]
Purpose: To fight the enemy from above and to generally form a mobile defense group to and later on will need to support team 3 in attacking the enemies.
Yes as the team name suggest, form a mobile air brigade consist of anything that is flying and fast to run around the map and kill off anything that try to kill you and suport team 2.
Team 2: Thor and Rocket[]
Purpose: To sneakly run around the map and transport engineer and capture the stones.
Yes, Thor is out of shape so he can't be too aggressive in this role, form this battle group with transport unit like Stallion Transport, Borillo/Armadillo, Driller, Jackal Racer and fill them with Engineer, their role is to try to capture any stone that is not mark with the giant "!" in their head since that stone will be capture by the enemy later. Use team 2 to support and protect this team and make sure to always leave 1 stone for the enemy to control because when you capture the last stone, the final Endgame will start.
Team 3: Hulk, Ant-man, Captain America, Ironman[]
Purpose: To form a powerful punch right after the final stone is captured by your team.
By the time of the Endgame, you will need a fleet of anti structrure aircraft / tanks that can deal with enemy building in a single salvo, I would suggest Barracuda for Allied Nations, Kirov Airship for Soviet Union, Basilisk for the Epsilon Armies and Quetzal for the Foehn Revolt, ground unit can work but they can be quite slow. During the stone collection you need to amass the number of these unit that will theoratically enough to take out 4 type of enemy key structures: the ConYard, the War Factory, the Barracks, and the Superweapon in one salvo, remember that when the Judgement is activated, only enemy units will be dusted, their base defense will still standing and very quickly they will start producing again so you only have a brief window when your jets is airborn and aiming for the target. If needed, use Team 1 to escort team 3 members so they can strike a cripling blow to the enemies.
When you have cut the head of Thanos and deal with the Black Orders, the final fenzy will be very manageable when the enemy only have 4 of their jets (if any) to deal damage and the final operation is just a clean up operation easily perform by artilleres.