I admire the fact that you actually came forward to make a tutorial but there are many details missing.
1)The ingame resolution must be set at the highest resolution possible.(Preferably at the computer's native resoltion)
2)Shadows,textures,loading primary..EVERYTHING in "Video Options" ingame must be set to highest possible.
3)Nvidia and ATI users can use Nvidia Control Panel or Catalyst Control center to raise all of the graphics settings to max.
Btw,if anyone wants a link to the tgaconverter that I use,you can PM me. Nice video though.