The old tool tip/item description, which was still in-game several weeks ago IIRC, read:
8,432 Maximum Shield Capacity
(10% Bleedthrough)
151 Shield Regeneration every 6 seconds
When Receiving all Energy Damage, 25% [or alternating 0%/100%--whatever it actually was] Chance of applying Subvert Targeting Array to Damage owner
-25% Accuracy for 10 sec
Placate for 1 sec
Reduces Plasma Damage to Shields by 20%
The new description seems to indicate that it's just a 20% chance for a 1 second placate once every ten seconds, which royally sucks compared to a 10 second accuracy debuff. Did I miss a change? Is the new description correct or is this an error?
On STOWiki, Adapted MACO (page last updated in Oct) shows the old description:
http://sto.gamepedia.com/Adapted_M.A.C.O._%28Space%29#Adapted_M.A.C.O._Covariant_Shield_Array
While KHG (page last updated in Nov) shows the new:
http://sto.gamepedia.com/Klingon_Honor_Guard_%28Space%29#Klingon_Honor_Guard_Covariant_Shield_Array