PD: Also, everytime I clic on the button "open report", some zones of the map that were unexplored are revealed to me.
Edit: looooooooooooooooooooooooooool
When I returned to the main menu, I saw the option to load a save game, so I clicked the button, and I was exactly in the same position just before attacking the zombie pigmies.
Edit 2: It was beautiful while it lasted.

I attacked the zombies pygmies again, and AGAIN the "game over" screen appeared. I returned to the main menu but I couldn't load the save game once more.
