You have currently added 6 new units, The Seleucid Marine, Agema, Heitorai Kataphractoi, Seleucid Auxiliary Toxtotai, Judean Hekatontamachoi and Galatian Champions...
The last two units have a very limited AOR, and thus are less of an issue. Likewise, the Heitorai Kataphractoi, if implemented as a unit only recruitable in the Eastern part of the Empire, is also not a major issue. The units that are of concequence are the Seleucid Marine, Seleucid Auxilary Toxtotai and the Agema.
My idea is to "shave" a little excess fat off of the unit roster in the Highest Tier Barracks, units that have become obsolete and thus no longer represented in these Elite Barracks.
First of, the
Greek Archer. This unit has become obsolete with the addition of the Seleucid Auxilary Toxtotai, it costs the same, has the same upkeep, but the Seleucid Auxilary Toxtotai has higher stats than its counterpart, and represents the Hellenic Archer of the Highest Tier Barracks better than its standard 'greek archer'. The Greek Archer would be recruitable in all of its standard barrack levels, all apart from the highest, where it would be replaced by the Seleucid Auxilary Toxtotai.
Next is the
Levy Pikemen. Who even recruits this in the Highest Tier Barracks, let alone recruits them at all? These guys are completely obsolete when compared to the Katakoi, Pezhetorai and the Agrysgapides, and its not a unit you'd recruit to be a low level town militia, they're pretty expensive in upkeep, you have Machaimorai for that. This again is only for the highest tier barracks.
This idea could also pertain to the Highest Level Dockyards... Lets be honest, Nobody really pays that much head to their naval composition as they do their land armies. That's why I looked at the four boats represented in the highest level dockyards, and came to the conclusion that the weakest of these should be cut from the roster, that being, the Bireme.
Now the
Bireme would still be recruitable in any Dockyard but the highest level, meaning that it would become obsolete because of the following reasons; first of, the Trireme has a slightly higher recruitment cost, but a far lower upkeep cost as well as a higher attack and defence than the Bireme. Also, it is a '0' turn recruitment unit, making it possible to still recruit massive navies if needed, navies that would be cheaper to keep than the Bireme.
That technically only opens up two slots, seeing as the Seleucid Auxilary Toxtotai fills in one of them.
A few other units to take into consideration would be the following...
Greek Prodromoi, which I've personally never recruited, because the Greek Aspidophoroi are a far stronger and more capable Skirmisher Cavalry than the Prodromoi, with higher stats and more armour. Also, when using Skirmishers I usually utilize the Babylonian Horse Archers or the Agema, longer range and more deadly. This unit would thus be recruitable in all its previous barrack levels, except the highest.
Greek Lonchporai, good medium cavalry early and mid game, but I find that it is replacable by the Heitorai. The Lonchporai have a slightly higher recruitment and upkeep than the Heitorai, but have lower stats all around. This, once again, would only effect their recruitment in the highest tier barracks.
This, in Total, would free up four unit slots, with the fifth allowing for the Seleucid Toxtotai Auxilia. It would also solve a whole slew of issues all across the board, making sure that many areas don't go over the 32 unit limit, possibly even allowing for the Heitorai Kataphroctai to be implemented in port cities like Persepolis
