I would have to dissagree with my emminant coleague here slightly, Above all a Centurian was expected to be reliable and diciplined, personnal heroism, whilst desirable had to be secondary to these concerns. Centurians were not nessessarily in the front rank. In fact I would have thought the second rank a more likely position, as psychologically he would be able to push his men foward because his voice would come from behind them.