i'm not too sure as well but my 10command/10influence fraction leader with 9experience has 116people in his unit thats 115 bodyguards thats mighty kick ass. =) he is 55now and i've trained him along with his army since he was 16...maybe it has something to do with experience. however i doubt it because my 6experience 10command, 5influence fraction hair only has 52people in his unit but he is only 33years old. maybe has something to do with all the factors. but i do think that age and command seem to be the dominent one.