It seems to me that they are the troops that the lords can recruit in their armies, so if you look at the troops that c (kings) have they are knights and they are better than those of a, (vassals) who are only recruits and a little more...
this says in module_party_template
插入代码块:
# Reinforcements
# each faction includes three party templates. One is less-modernised, one is med-modernised and one is high-modernised
# less-modernised templates are generally includes 7-14 troops in total,
# med-modernised templates are generally includes 5-10 troops in total,
# high-modernised templates are generally includes 3-5 troops in total