I would have to say that it would depend on the time period we are talking about. With regards to uniforms it would seem that when organized most of the men were simply wearing whatever they had with them, mostly home spun. I know that the references I have with regards to the first raid into Missouri, many men were wearing captured Union overcoats whenever they could get them. As to how they were armed, that again varied. I have one document in my collection Dated April 14th, 1864 in Louisville Arkansas in which an officer of Dockery's Brigade took into custody a dozen men who belonged to Shelby's command. They had been given orders from Shelby to round up whatever horses they could from the countryside. Complaints to Dockery resulted in these men being arrested. When arrested the Arresting officer, listed the mens names and what equipment they carried including weapons. There were six men armed with Sharps carbines, one a short musket, two Austrian rifles, a Savage, with cartridge & Cap box. Virtually every man was armed with a Navy six with one or two cap boxes and belt. The list of men came from Elliott's Battalion, Smiths and Shanks Regiments. I am sure in the early days of the Brigades formation they were armed with whatever they brought with them from home or later captured.