Sometimes (very often actually) I have to click several times to issue the order, and even then it might not do anything. Just keeps the group selected, the cursor changed and nothing happens when I click. Sometimes it won't even let me deselect the group of units... And can't I have my units cancel their attacks and retreat? No, better let them try to finish those slow attacks and die, while the rest of my army is pulling back.
Survived the day - Yes, Saved your wife - Yes, Tactics - B, Compassion - A+
The compassion is fine, but the tactics rank is embarrassing. It evaluates my chance to survive a real outbreak, hilarious! Great game!