thanks for the replies, I just tried a chariot rush with the romans as i had no iron and there only looked like there was 2 lots of iron on the whole map, i took 3 down to montezumas second city, it had defence of 7 was in amongst forest and had an archer and he destroyed my 3 units in 3 turns, i have seen good players do something very similar on much higher levels and kick ass, very frustrating for me, i guess its trial and error