soldier roman_city_militia, 60, 0, 0.6

Make sure that in your EDU file the 60 shown above doesnt go over that 60 men.
I was under the impression the game would crash if you increased it over 60 men, but it may be that as long as the unit doesnt exceed 240men it doesnt crash.
eg; if you have it at 80 and run the game at normal or large scalling you would have 80 or 160 men, turn it to huge scaling and it will be 320 men, way above the 240 men limit.

For code tags just select the text that you want in code-tags and hit the 'code'-button (the one with the '#' on it)
{code}
mytext
{/code} (replace the {}'s with []'s)