Just played a match and started of reasonably well with supply, got a nice little army going. It was a quick expansion. Unfortunately, I didn't anticipate my opponent creating a ghost and quick-nuking my main base - not that I could've done much anyway. Question: how on earth do you combat the ghost or its nukes? Is the only way to get a quick kill on him or launch an assault into their base? Thanks in advance!
hopefully you scout his base and see the ghost facility and can get an overseer before you get nuked. 4 zerglings + an overseer = dead ghost in the middle of sending a nuke. If you aren't as lucky, you gotta be sure to get your drones out before the nuke lands.
although perhaps you aren't zerg... substitute overseer for observer or obital command with scans for the other races. both of which you should be getting anyways for general scouting purposes
And if you're playing Protoss, you should have your first Observer quite a while before your opponent is anywhere near getting nukes. =/