The COD Weapon Badges are not meant to be hard or easy, they are meant to promote teamwork above anything else. Those who play as a team find themselves earning the weapon badges a lot easier and end up wanting to move up in the ranks more so after attempting them along with the other badges such as the Tactical Precision, Quarter Pounder and eve the very hard Shock Squad Medal.
The reason why no one has gotten the Shock Squad Medal is because of the lack of "teamwork" and "discipline" which is needed and can only be attained if players learn how to properly attain their Weapon Badges.
Every single award that I have added has a reason behind it, especially on the COD side ... I personally look for teamwork from the whole squad rather than kills or a player going "HAM" or "Beast Mode" on the other team.
You might think my post here is irrelevant, but making it hard to attain the weapon badges was not why I made them.
Also, the Battlefield Brigade did not have weapon badges for a long time, they came up with the requirements they did ...