From en.wikipedia.org/wiki/Britisches_Freikorps
With the failure of Amery’s recruiting efforts, another idea was tried in an attempt to woo POWs into joining the BFC. Given the harsh conditions of POW camps in Germany and the occupied areas, it was decided to form a “holiday camp” for likely recruits from POW camps. Two holiday camps were set up, Special Detachment 999 and Special Detachment 517, both under the umbrella of Stalag IIId, near Berlin. English-speaking guards were used, overseen by a German intelligence officer, who would use the guards as information gatherers. But a Briton was needed as a possible conduit for volunteers and for this duty, Battery Quartermaster Sergeant John Henry Owen Brown of the Royal Artillery was selected.
Brown had been a member of the British Union of Fascists (BUF) before the war, but was also a devout Christian. Captured on the beaches of Dunkirk in May 1940, Brown eventually ended up in a camp at Blechhammer. Given his rank, he was made a foreman of a work detail where he successfully won the confidence of the Germans. With his status, the Germans made him the camp leader of Special Detachment 517.
In reality, Brown had been setting up a black market scheme, smuggling in contraband to give to his men and also to buy off the guards. Later Brown learned the POW message codes created by MI9 and began to operate as (in his words) a “self-made spy”. Once he understood his role concerning the “holiday camps”, he determined that he was in a unique position to both hinder the formation of this unit and to obtain intelligence — while also making sure the men who came to the camp actually got a holiday.
also their methods of recruitment…
The first group of POWs to be taken to Luckenwalde were mainly from the Italian theatre. One such case was Trooper John Eric Wilson of No.3 Commando which illustrated the techniques used by the camp. Upon arrival, he was stripped, made to watch his uniform get ripped to pieces, and then given a blanket to cover up with. Placed in a cell with just the blanket and fed 250 grams of bread and a pint of cabbage soup, he was only allowed out to empty the waste bucket. After two days like this, he was taken before an “American”, who was in fact Scharper. Wilson was asked his rank (about which Wilson lied, saying he was a staff sergeant), name, number, and date of birth, then returned to his cell. Left alone, a “British POW” would come in from time to time, offer cigarettes and conduct idle chit-chat. The end result was that the isolation and the mistreatment led to him holding on to the “POW” who showed kindness to him. When dragged before Scharper some days later and offered the choice of joining the BFC or staying in solitary, it can be understood why Wilson chose the BFC. With this initial success, it was deemed this method would be the gateway to expanding the BFC and in turn, 14 men were made to join. This including men from such esteemed units as the Argyll and Sutherland Highlanders and the Long Range Desert Group.
Why they never saw action…
The recruiting drives brought the BFC to a strength of 23 men. This worried Freeman because if the unit reached 30, then the BFC would be incorporated into the SS Wiking Division and sent into action. To prevent this, Freeman drafted a letter, signed by him and 14 other BFC men (mostly newcomers), requesting they be returned to their camps. Freeman and one other instigator sent to a penal stalag on the charge of mutiny on June 20, 1944. Freeman escaped the stalag in November 1944, and reached Soviet lines where he was repatriated in March 1945.
Basically a few nutters who liked the Nazis but were generally incompentent and a bunch of typical Brits who just wanted to make a big pigs ear out of the whole thing!
They had all the freedom you could want (for a POW), so of course in true Brit style kicked the arse right out of it!!!