I don’t know about op; however, I do play hover, and they are just annoying before and after they die. If all vehicles had a terrain flatting attack their annoyance after they died would become a minor inconvenience. Maybe I should try quake missiles. Hmm, opponent makes wall to stop lances attack, I advance my army directly behind wall, using it for cover. Hit the wall with a quake missile, and suddenly their army is in range.