Cotana brings the Mantle to the rescue!

You know ive been thinking about an equalizer for the achillies armour, spawn kill farming. What if after core spwn kills Cortano brings inthe Mantle and goes after the farming team. Now that would be cool. What do you think my fiends, she starts wopping the farmers and they then have to pull out all resources to servive and still win. No more core spawn farming and then the other team can still win. What an awesome wild card. Also if the farming team defeats her some how and still wins then they get a perk towards the AKILLU armour. Well?