GriB_o.k.
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Dear Tokha, please provide a complete step-by-step guide so that I don't have to ask again what to do and where to put things, thanks in advance!
You download the game save from here /attachments/1746/> - difficulty: impossible
/attachments/1745/> - difficulty: normal
You choose yourself which difficulty level you want to play on.
Next, you unzip the archive (I hope this doesn't need explaining) and place it in the Heroes folder, in the games folder.
Then, launch Heroes, select "Load Game" in the menu, then "Load Scenario," and in the list of games, choose "impossible" if you selected the most difficult level, or "normal" if you chose the regular level, and load the game as usual. That's all; start playing.
If you want to see the entire map, you download the map from here /attachments/1748/>. Also, unzip it and place it in the Heroes folder, in the maps folder. Then, launch the map editor (I hope you've used it at least once?) and click "File," then "Open..." and find the map "Revival (Tournaments)" in the list and open it. It's simple. Good luck.