which way do you order your reinforcements??

[caravel]

Are you referring "ordering" of reinforcements in the pre-battle screen (assuming you have VI)? Or when to bring them on? The ordering is crucial, as you don't want 7 units of peasants to come on and off before you can finally bring on a decent unit. So juggling your units around before battle is vital in order to have the right units available when needed. Missile units tend to run out of their missiles and then become next to useless, so it's a good idea to have groups of replacements ready in your reinforcements line up. When actually on the field it's a good idea to bring on reinforcements for exhausted units and those out of ammunition in phases.

For example as the Turks, playing a defensive battle, I would have some groups of cavalry, Ghazis and missiles first, with replacement Saracens further down the list as they are not likely to move around much and die slowly in their defensive role.