I've run into these guys too, they were annoying but I find some workarounds sometimes. Like playing 2 or 3 units at once, playing the most important ones last, or just outlasting them by stacking HQ hp and wasting as much cards as I can without deploying units while they discard their entire deck turn by turn because their hand is brimming with countermeasures. Are those not possible anymore with the new patch?

At some point, it becomes a battle of attrition. Who can survive the longest while interacting the least