I did explain this at the DMS site earlier today, but since you do say that you can´t visit DMS from work... so here is the explanation to the "stupid" behavior of the AI troops (running a AI mod is NOT recommended. It will not fix this problem and may give you random crashes).
Whenever a new mission in DCG is generated, and the enemy force is large enough, the enemy force has two waves, 1st and 2nd. The 1st wave will start moving towards their objectives as soon as the mission begins, whilst the 2nd wave will be standing idle.
When the 1st wave has reached their objectives, the mod awaits your reaction. If you captures all objectives, the 2nd wave of enemies will start moving towards the objectives and will try to throw you out from the objectives. This the 2nd wave, are most likely the AI units you have seen standing idle and doing nothing.
The 2nd wave can start to react when one of the following things happens:
a) You captures all the objectives or,
b) You fires against the units in the 2nd wave or,
c) You get close enough to be seen by them.
Unfortunately the 2nd wave is placed on the map at the same time as the 1st wave and thus you can see them standing idle and doing nothing. We´re working on a solution to this, but to be honest, it isn´t very high on our "to-do" list.
The later versions of DCG that we in the modding team has access to (I think we are about 12 versions ahead of you
) do work better in regard to this.
All of the three addons just require a "drag-and-drop" action from you, so I hardly agree that it is that difficult to get those to work...
~Zeke.