Some pictures of the battle now
After infantry skirmishing all along the lines of battle, The Immortals and Sparabara were ordered to advance and assault the Egyptian centre and left (the Levy, the and Guard respectively).
The photo shows some elements of the Egyptian guard and levy with white markers in a "shaken" condition (this replaces the destroyed outcome and after a breakpoint is achieved, the command must test its morale).
The blue markers are disordered elements – and disordered elements are those that have had a "recoil" or "push-back" result against them.
In this way, with the elements remaining stationary, the battlelines are still there even after the fighting has lasted for 4-5 turns.
The Persian cavalry in the foreground is poised to charge the Egyptians
Close up of the Persian Immortals in combat with the Egyptian Guard; Three of the Egyptian elements are "shaken", which is their "breakpoint" to test morale.
The Guard passed its morale test, rolling a "2" which is under its combat/moarle value of "4".
The Egyptian Levy is attacked by Sparabara, having suffered from skirmishing from Persian javelinmen.
It had already been forced to check morale in the previous turn but in the last turn played had a further two elements shaken and it`s line broken when one element routed (note the yellow "broken" marker and the red "routing" one.
Luckily, I needed a score of "1" and I rolled a "1", passing the morale test, but it seems that the next turn will produce a break-through for the Persians.