How to get Cloud 

CLOUD IS FULLY PLAYABLE IN FINAL FANTASY TACTICS. 

You even get all his limit breaks! Here's how. 
To do this you must... 

1. Be in CHAPTER 4, before the Orbonne Monastery
Battle.
 
2. You must have Mustadio(The Engineer) in your
group. 

  Listen to the Rumor of the "Cursed Island"
(Nelveska) at the bar in Zeltennia Castle. 

  Buy a flower from the flower girl that looks like Aeris
in Zarghidas Trade City 

  Go to Goug Machine City with Mustadio. Basrodio
will look over a steel ball found in the No. 57 Mine. 

  In the bar at Goland Coal City, listen to the Rumor of
the "Ghost of Colliery." 

  Get Beowulf to join your party in Lesalia Imperial
Capitol. 

  Now, go back to Goland Coal City and complete the
four battles. When you save Reis, the Holy Dragon,
have her join your party. You will also receive the
Aquarius Zodiac Stone in this city. You will use it to
activate the Steel Ball. 

  When you go back to Goug Machine City, the
fearsome Steel Giant will violently transform from the
steel ball. 

  At the Nelveska Temple, you must defeat the evil
Steel Giant and recive another Zodiac Stone. 


  Return to Goug once again. The new Zodiac Stone
will trigger the Time Machine that will summon Cloud
into the new world. You almost have gim! You still
have to rescue him from people that are picking on a
flower girl that looks like Aeris. 

  Go to the Trade City of Zarghidas and protect Cloud
from the Thieves. If this does not happen, make sure
the story has progressed past dispute with your
brother Dycedarg and the battle with his
metamorphosed soul, Adramelk. Cloud has now
weapon when he joins you. All he can do is defend!
You can fix that problem. 

  Put the Chemist's "Move-find" ability and an 
addition to her jump height on someone.
Go to Bervenia and climb to the top of the highest
rock formation. There you will find the Materia Blade,
the sword Cloud can equip. 

  Cloud starts at level 1, you must build up his job
points so you can learn his limit breaks. You can
learn all of the FF7 limit breaks.

  I haven't tried this yet but I am told that it works
if you follow these instructions exactly.