James Bond 007 Blood Stone

The very first enemy you encounter in the very first level is an extremely easy stealth kill. Softly walk up to him from behind and follow the Steatlh kill prompt. Click Menu, then Reload Checkpoint. Rinse and repeat and you should get this achieve in less than 20 mins.

Note #1: There are two prompts... Takedown and Stealth Takedown.... you will have to get close enough to do the stealth takedown as just doing a regular takedown is not good enough. You should notice the Xbox game giving you credit for the stealth takedown rather than the queensbury rules.

Note #2: Walking up from behind is better than running up behind. The guard was more easily alerted to my presence when I ran up but I seemed to have plenty of time to stealth kill when I walked up behind.

Good luck!

I would just like to add to Darth Trom`s post that in the very first level on the yatch you can kill the first 5 guys with stealth kills even on 007 difficulty. These guys are really stupid, well I guess it is a tutorial level. First guy is on the upper deck right when you start. Second guy is in a cabin on a computer at the end of a hallway. Then shoot the fruit bowl on the table to work on another cheeve. Go down the ladder by the table and there will be 3 guys talking. Wait until 2 of them walk away and then it will tell you to hit the X button for a stealth kill as the game puts you in to position to do so. The 4th guy will now be on another computer in the next cabin and the 5th guy must be deaf because he is standing right there watching tv. I would next go up the ladder and kill a 6th guy, run down the hall, trigger a cut scene and a save. Then rinse and repeat. As mentioned by Darth Trom when you come up on someone the X button pops up saying takedown, you have to get a little closer till is says stealth takedown.

the best place to get this is the very last level "i already know". go up the stairs, get into cover before another stairs go down and wait for the first guard to come up the stairs. stealth kill him (watch out for the stealth kill message on the screen), then reload the last checkpoint. you'll be right at the stairs again and can rinse and repeat that with the same guard.