One of the PACG designer's, who did not work on the Army scenarios in Wrath, made these suggestions in this thread:
Keith Richmond wrote:
In terms of general army changes, switching it from if any fail to if half+ fail, allowing characters to double up on checks but increasing the difficulty by the # of characters doing that check if you do, adding a couple more options to each card, changing combat to not be 1 check but that half (min 1) of the characters can do the combat check. The Pazuzu's Host (6 non-combats, if you fail then make a combat) style fix could also work, but I'm not sure I'd want to use quite so liberally.
The Pazuzu's Host fix refers to the henchman from the Organized Play Season of the Righteous adventure 1-P. (Keep in mind this is effectively an adventure 7 scenario.) The henchman is an army with the following 25 difficulty checks to defeat:
The henchman has the power: "Each character chooses a different check to defeat. Each character who fails a check to defeat must attempt a Combat 50 check. If any character fails both checks, the barrier is undefeated; otherwise, it is defeated."