How to see farer in BC2

well yesterday my friend told me how to see farer in BC2 on heavy metal i can see the US base from A
if you want to do the same go to
Start --> my documents --> BFBC2 --> Settings.ini and then go down and there is " RenderAheadLimit=2". delet the 2 and write 100
after that save and restart the game
finished

hehe