The next Huge Materia is at the Condor Fort, which, until now, has been just an optional Event Game. If you didn't play it before, you might be in trouble . . . unless you cheat. Cheating is actually the simplest way to do this, because not only do get the Huge Materia without a lot of hassle, but you also get the Imperial Guard, some of the best armor in the game. All you have to do is not buy any troops, and let the enemy storm the fortress. This will begin a fight with an easy boss (he only has 8000 HP), and winning will defeat the enemy, plus give you the armor. Nothing bad happens if you do it this way. Of course, if you really don't want to cheat, my suggestion is to buy all the troops you can, and during the battle, keep buying more when you run low. I wouldn't suggest doing it the hard way unless you're moderately good at strategy games. Don't forget to grab Phoenix summon on your way out. At this point, Cid will tell you that you need to go back to Mideel. To check in on Cloud. Do so.