FOtS units not showing up in custom battle options

[jakedasnake_1995]

I have the retail gold version and when I got to set up custom battles I do NOT have any FOtS units. Althought I can play the FOtS campaign. here is the only thing I can find and it didnt help

http://forums.totalwar.com/showthread.php/36489-new-ships-in-custom-battle