Recons are not supposed to get into the action. They are supposed to provide reconnaissance and only use their weapons when absolutely necessary. The recon kit in BF3 is a very useful asset to a team working together, just not to the guy who wants to get kills.
In BC2 recons were FAR more useful getting in the mix with the rest, than sitting back out of the way. Laying down sensor balls and c4 up close was much more helpful.