NBA 2K10
50 Achievements
1,000
Xbox 360
Defensive FG% Trophy
Hold the opposing team's FG% below 40% with any team.
15
How to unlock the Defensive FG% Trophy achievement in NBA 2K10 - Definitive Guide
Edit all the settings in your favor, especially the cpu's shooting and you should get this easily. also don't let the computer get near the hoop because sometimes they will score on easy lay-ups.
This is a very easy achievement and it is made easier because you can use two controllers. Only take really long shots with the second controller to make sure you don't make anything.
You have to finish the game to get the achievement.