The Sharp Instrument Achievement in 007: Blood Stone for the Microsoft Xbox 360 is worth a total of 20 Gamerscore points. This achievement can be gained at any point in the game after you have the ability to do a “Focus Aim.”
“Focus Aiming” in 007: Blood Stone is done by holding the LB button down instead of the LT button to aim. It will ensure that the enemy being targeted is killed in one hit.
To get the Sharp Instrument achievement in 007: Blood Stone, you will need to find a group of at least two enemies. Run up and attack one enemy by holding in the Left Stick to run towards the closest enemy, then press the X button to take the enemy down. While the takedown animation is still going, line the camera up with another enemy and begin pressing the LB button to “Focus Aim.” Press the RT button to fire as soon as the “Focus Aim” has sighted the next enemy. IF you don’t get the achievement on the first try, remember that this needs to be done during the takedown, not right after. If you have found a good location for this achievement, simply reload the checkpoint and try again.
Note that you can continue holding the LB button down if you have more than one “Focus Aim” token saved up to clear a room quickly. This is one of the many elements in 007: Blood Stone that can keep the level of excitement up, as well as conserving ammo.
Congratulations, you now have the Sharp Instrument achievement and 20 more Gamerscore points.