Talk about shooting yourself in your own foot, sorry for the pun.
Yes it may be two years ago, but it is now the Armys job to find the guys that did this and get them out of the Army for good. I don’t care what provocation took place, the Armys job is not to beat up teenagers with batons, I did’nt see then loaded down with guns or bombs etc.! 
Then the Army has to find the guy that took the video, parade him on national TV and make him understand just what he has done to the reputation of all the service personal who do not act like this and ‘are’ a credit to the job that they do. I wonder how much money he got from the News of the World? Hope you choke on the lager you drank to celebrate.
This makes the effort (albeit we should’t be there in the first place) that we have to put in, even harder.