as an infantry player you have the ability to unlock the sniper rifle, though you must get the appropriate ribbon. If you decide to become a recon, you get access to the classes sniper rifle and the anti-personnel mines, which are normally locked until the ribbon is completed. If you decide after your trial period that you no longer wish to be a recon, the sniper rifle is then taken away due to your character not having the proper ribbon permissions, you essentially lose the 200k you spent on the rifle. Other then the fact that the recon gets a pretty cool vehicle, a better uniform, and quicker access to its gear, its not much worth it. Though, i have one of every class anyways, so you will be getting one eventually anyways.