Well, for starters Recon is hard to unlock even for Generals. Noobs can't perform difficult tasks so they ask Bungie to give it, hoping they oblige. Before the Vidmaster Challenge where it made made anyone capable of completing them able to unlock it. The only way to get it was to impress bungie with a video, screenshot, map or beat them in matches, although even if they are beat, they will reward you only if they think you deserve it. A particular time a person got Recon was when he was killed by a traffic cone, that was the first time a player submitted it in.