L96A1/AWP/Arctic Warfare Magnum
Look In-game: Model should look like this, the Stats could be 96-97 Damage.
The M40A3 Series
In game Model:
These weapons have to be in IRON-SIGHT, they are iconic, and are a must in any FPS game :). As a sniper I want more options, I would use any of these 3 in a heart-beat over the DSR-1, Blaser, and the 50 cal. Players play games like Bad Company 2 simply because of the aesthetics of the M24 above, as well as the first COD black ops because of the L96A1 sound. And the M40A3 is self-explanatory it is simply iconic.