I forgot to post this here :P
Finally i found some time to play this map. I saw the offical page showing som many things to do and to find that i wanted to play this with more attention to the details, because i knew that i would become obsessed with the search.
i had to split my playthrough in 3 parts. Here is the first one, from the begining of the map until i die next to the exit door:
Since i died so quickly in the first part, i wanted to take my time to find more ammo and health packs before trying to fight the minotaurs again. After that, i went in my epic search to find the last runes to finally destroy the sword:
In the second part i left the map without killing two enemies, so i quickloaded again just to kill them:
Hard mode, all secrets, all sub-secrets, all runes and all enemies killed \o/