*** NOTICE BEFORE INSTALLING ***
ALWAYS, ALWAYS BACKUP FILES THAT YOU WILL BE MODDING. THERE IS ALWAYS A CHANCE THAT YOU WILL MESS UP A FILE AND RUIN THE GAME. I AM NOT RESPONSIBLE FOR ANY DAMAGE TO YOUR GAME AS A RESULT OF THIS MOD.
Go to your Star Wars: Empire at War game directory (usually C:\Program Files\LucasArts\Star Wars Empire at War).
Double-click on the "GameData" folder.
Double click on the "Data" folder.
Look for and double-click on the "XML" folder.
In the "XML" folder, there should be an XML document titled "factions". Open it with Word or Notepad.
Carefully scroll down the document until you see text like this:
Land_Skirmish_Unit_Cap_By_Player_Count 0,10 1,10 8,5
Change the second number of each pair of numbers to the population limit you want.
Voila! You've successfully increased the land population cap. By the way, this should also work for Forces of Corruption.
BTW, if you do not have an XML folder, Gamefront should have the folder and files for patched versions of Empire at War