In Lodamun, for example, it's obvious that the active forces are all paramilitaries, who would be different from a professional military in another country.
Paramilitary simply states that they are not strictly official but not their role, meaning that they could fulfill any role,
I made the sensible assumption that the costs for 5000 men referred to their upkeep, training and the logistical backbone that they'd require to function. That is unless you want to itemize (and try to take inventory of) everything from rifles to plate carriers to Landrovers and then calculate their attrition rate and upkeep costs, then add in differing training costs.If you read OTAF, you see that there is a difference in the cost and quality of different origins of equipment. The laws in-game specify the role of the soldiers.
The guide makes no reference to the differing maintenance costs of equipment by country of origin, in general the list maintenance costs seem to be crazily out of proportion, for example there's no recognized upkeep cost differences between a cheap OPV and a fully armed Type 45 Destroyer or a Russian Kirov cruiser and the maintenance costs of Vietnam's 3,000 tanks would be akin to operating 150 Aircraft carriers, clearly there's something wrong.
All in all, for the main flesh of a 15 page document it's a little bit of an anti-climax.