HookEvent("bullet_impact",BulletImpact);

public BulletImpact(Handle:event,const String:name[],bool:dontBroadcast)
{
     new Float:Origin[3];
     new client = GetEventInt(event,"client");
     Origin[0] = GetEventFloat(event,"x");
     Origin[1] = GetEventFloat(event,"y");
     Origin[2] = GetEventFloat(event,"z");
     // TE_SetupExplosion..... :D
}