Call of Duty 4: Modern Warfare/Assault Rifles

The M14 is a very good long range rifle, it is very powerful even from a considerable distance, it is not semi-automatic but it is still a good weapon to use. If you can, go for headshots as they are one shot kills, one of the drawbacks is a small clip and the time in-between shots is a bit long. Even though you get this gun later on in the game, it is not really much use, it is semi-automatic but fires quite slowly and the bullets are fairly weak, to top it off, it has no attachments to choose from.