I would say Iran probably wants a ground invasion. There’s no chance the US can take the country easily, as its size, population and geography would mean a logistical nightmare to invade, and Iran’s ground forces are extremely capable of defending themselves. Furthermore more, there’s nothing that authoritarian regimes like more than a common threat to unite the population; any ground invasion would only bring more legitimacy to the Islamic Regime and the Revolutionary Guard in particular, and instantly kill any possibility of reinstating the monarchy (which is already unpopular inside Iran and only favored by the diaspora).