What does the upgrade button in the advanced warfare building do?

What does the upgrade button in the advanced warfare building do? - Aged television set with control panel and plastic case near wall in building on white background

My question is not about the random perks that soldiers get when they are promoted while you have an AWC built (like here).

My question is about the button appearing at the top of the AWC to change the soldier abilities. What does the feature at the top do?






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What does the upgrade button in the advanced warfare building do? - Interior of modern office lounge zone with sofa and armchair with table near window next to TV on wall and neon signboard with text do what you love near door
What does the upgrade button in the advanced warfare building do? - Crop person holding modern wireless controller
What does the upgrade button in the advanced warfare building do? - Interior of contemporary car with luminous dashboard with buttons and speedometer on parking lot





Advanced Warfare - Completely Upgrade Your Exo - Guide




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