This is the organisation of my first group of Beja according to The Sword and the Flame rules. Each band is 19 figures plus a leader known as a sheikh.
Three tribes make a larger force called a tribe that require a mounted Emir to lead them. I am making one of the three tribes armed with rifles, even though you are only supposed to have one in four units with rifles. I can deal with this when I paint my first unit of Nile Spearmen.