Ok, problems with the brigade so far.
1) Germans weren't commited to the project.
2) Germans mistreated the prisoners when they did not cooperate.
3) Confusion from German soldiers not involved in the project, didn't understand the special status of the prisoners.
4) Many of the prisoners were loyal to Britain.
5) Those who joined were of dubious intent.
6) Casement got little support during his visits.
7) The prisoners were often rowdy, disobedient and hard to control.
8) The Germans wanted a Colonel to lead the brigade at the least, they got a Captain.
9) Disagreements over how to use the brigade if they couldn't reach Ireland.
10) They weren't sure how to transport the soldiers to Ireland.
11) The British were aware of the project and we're keeping an eye on it.
12) Casement didn't think the Easter Rising would work.
13) Soldiers weren't prepared when it started.
14)There were no back up plans if the attempt failed.
Not to worry though, for the muse of war is with me. And I have a plan, that sort of uses the one I mentioned earlier.
Basically, what the brigade needs to get off the ground, is a practical man, preferably an ex-soldier to advise Casement on the formation and running of the brigade in it's infancy. There are many such men in America, Britain and Ireland who would gladly step up to the position. And from what I know of Casements move to Berlin, it'll probably be an American IRB man who may have served in the army or National Guard, especially during the Mexican Revolution.
I also think that my plan of transporting German officers to Ireland could work in conjunction with the brigade being created in Germany. It means that not so many men would be needed in the brigade, and once the it's in Ireland, it could be used to confuse the British. So whilst the German officer led unit would be raiding a barracks in Galway, the German trained unit could be destroying dockyards in Belfast.