Re: Flaming missiles?
Flaming arrows are not as accurate. If you want to kill units, do not flame.
Of course, flame the seige equipment. This will not be effective with one archer unit, but three are usually successful for me using Retrofit Mod. The tower flaming when at the wall is really effective with the elite unit on the stairs. One archer unit at point blank often works (remember to disable skirmish mode).
Remember, if the ram flames, then the gate is safe. With only a tower or ladders, the enemy cav will remain outside. Well worth the chance in my opinion.
Also, I find it useful to flame the general's bodyguard and other cav. This is especially good if two units are close. The riders may not take the hit directly, but the horse is still vulnerable.
I agree the arrows are fired quicker when flaming is disabled. I have not been able to see where the morale loss is a big factor for me either.