Return to Fort Condor
This is the final battle at Fort Condor. You'll face tougher odds than ever before, so you'll need to take lots of money. This will help you to buy enough troops to put up a strong fight.
Place lots of troops along the mountainside, and focus on placing Fighters and Attackers down low backed up by Shooters, Defenders, and Repairers. You may want to place Stoners, Tristoners, and Capapults at the top of the three paths to block the enemy advance if they get past your front line. Lastly, place a few Defenders around the hut as backups. They can move in and attack or fill holes as needed. If the enemies make it to the shed, you're forced to fight the Enemy Commander.
After the battle, the Condor is killed but the baby Condor lives. Check outside and you find the "Phoenix" Materia next to the nest. Talk to the old man downstairs and he'll hand over the Huge Materia.
Cid tells you to go see Cloud, so hop in the Highwind and return to Mideel.