Commander's Challenge

Commander's Challenge is a special feature introduced in Command & Conquer: Red Alert 3: Uprising.

Plot
If you first start at the challenge, FutureTech advises that they will use the unlocked tech for your purposes or even, their purposes.

Unlocking
In order to unlock any new tech, you must finish challenges to unlock other challenges and side challenges. Side challenges and challenges unlock new tech that you will use to conquer any other commanders.