Beat the game in low chaos mode and got the better ending.
It took a lot of reloading but I finally figured out the guards positions and motions.
The guards recognize you to fast, IMHO.
I used a lot of blink and possession.
Turned off the power silos by removing the whale oil.
Great game.
I still think Styx is the better stealth game.
Maybe next time I will kill every thing in sight..
Lol.