In previous Call of Duty games there are Semi-automatic Assault Rifles like the well known 'FAL'. You could spam out rounds as fast as you could pull the trigger. Some people who had a "Rapid Fire" controller could fire off a whole clip in just a few seconds. Now in Call of Duty Ghosts there is...
What Is Everyone's Favorite Weapon and attachments they prefer with what perks that they feel help combo you battle strategy.
Personally in MW3 I like to use ~
Primary - MP7 with Red dot sight and extended mags
Secondary - Desert eagle with tactical knife
Lethal - Semtex
Tactical - Smoke...