DCO does exactly what we all expected it to.
.. Dammit.
Too expensive and in a high demand slot. I doubt you'll see it much.
This. For defensive upgrades, you absolutely know that you want the defensive upgrade. And in an offensive-oriented game, you really need an ordinance heavy meta that you're trying to counter. If a bomber list does end up with a free officer slot, then bringing it to shut down speedy MSUs might be just the trick. But that's the trick, knowing you already don't want to do anything else.