near_clip
For me, changing "near_clip = 4" to near_clip = 0.1 fixed the problem. That may or may not help you however.
C:\Program Files\Ubisoft\Eagle Dynamics\Lock On\Config\graphics.cfg
Camera
{
current = "Medium";
Low
{
near_clip = 0.1;
far_clip = 60000;
structures = {30, 2000};
trees = {60000, 3000};
dynamic = {300, 20000};
objects = {3000, 40000};
mirage = {3000, 10000};
surface = {10000, 50000};
lights = {50, 10000};
lod = 0.7;
}