The original author is "The Savage Potato".
I just assembled all the maps in one package- a custom campaign file.
It was a real pain to download 54 maps separately and play.
Place it on the CAMPAIGN folder of your wc3 base directory.
then go to Single Player > Custom Campaign
This campaign is really HUGE. if you liked blizzard campaigns in any ways, this IS for you.
This campaign story starts from the end of original TFT story.
if you type EASY or HARD in chat, you can change the game difficulty.
works after ~chapter 15 i think.