1. Fire-arrows cause fear to the receiving unit(s). They are also effective
against wooden things such as chariots and siege towers.

2. War cries and such are supposed to boost your own moral and demoralise the enemy. I didn't use/need it much playing the Germans, but I read somewhere that druids are very usefull to the Gauls.

3. All fights have time-limits, but there's a bug with this: if you start but not finish a historic battle just before you begin a new campaign there will be no time-limit at all throughout that campaign. In the 1.2-patch you should be able to turn off the time-limit in siege-battles (so I heared).

4. If reinforcements are led by a general then the computer commands them, you command them when a captain is in charge. You can command a maximum of 20 units at a time, so the only way of having more units on the field at the same time is if they are controlled by an AI-general. After you install the patch you will be able to choose before the battle which army you control.

5. All your cities pay for the upkeep of the entire army according to their population, the location were you train or station troops has no effect on the distribution of the costs.

Hope this helps...

H.