Comments - trickery

How U.S? Or More than the U.S? I don't understand what you're trying to ask..... Maybe be a little more clear?

美國如何 S 嗎 ? 或多及美、加等地的嗎 ? 我不瞭解你想問 ..... 也許會多一點清楚嗎 ?

C:\Users\{USERNAME}\Documents\My Games\Sid Meier's Civilization 5\MODS

If it isn't there, try
C:\Users\{USERNAME}\Documents\My Games\Sid Meier's Civilization 5 and add a folder named MODS