Sweet stealth game!
This game is really awesome, I have almost no complaints. The controls are very responsive, nice variety of weapons and level designs. The game is really fun to play and having the option to stealth through all levels except the bosses is cool. I have been able to get master on every level except level 19, if anyone has been able to get that one please let me know. I have tried it many times and keep coming back to it and can not stealth through it. DarthBlam, it seems you are the only person with this problem...perhaps your aiming is terrible. Try to stealth through instead of killing everyone, it's more of a challenge and far more fun that way.