[Dedas]

Yes, but they are a quite easy prey for massed archers with the "fire at large creature" command. Combine them with javelin equipped skirmishers with shields to damage and fatigue them some and you will see the critical hits rack up. Also, as they cost 40-50gp a piece you can't afford that many and still have a chance at building fortresses to expand your research and economy. Practically you only got one shot, if you fail that you will be far behind the competition and also wide open for an attack. Another thing, if you rush, go all way, you don't want to sit with a plentorae of high upkeep units that you can't effectively attack with.