[Nagot Gick Fel]

Alneyan said:
* The infantry
- The Cardaces and the Peltast remain

Keep the Peltast more or less as it is, rename it to Psilos (pl. Psiloi).

- The Hoplite and the Hypaspist are removed.

Keep the Hoplite, make it lighter, give it standard human stats, rename it to Skutatos (Skutatoi).

- A new elite troop appears to form the core of the army. These units wield two weapons, and are the result of new strategies being used.

From the beginning to the end, the core of Byzantine armies was heavy cavalry, with lance, bow, or both. The only elite infantry was the Varangian Guard, and was traditionally recruited among stocky Scandinavian or English mercenaries. They should wear chain mail hauberks, helmets and battleaxes.

- The appearance of troops able to fight under the sea.

I'd rather give some commanders the sailing ability. Much more thematic IMO.

* In accordance with the new tactics of Arcoscephale, cavalry has become more important to the nation.

'More' isn't enough . Most campaigning byzantine armies didn't include infantry at all, or very few.

- The regular cavalry units of Arcoscephale remain.

It should be much heavier. Lance, sword or mace, composite bow, with protection 14-15ish for the regular cavalry (see default T'ien Ch'i 25gp cavalry for comparison). There should be an heavier elite Version as well.

- I was thinking of giving them elite cavalry as well. It would be a cavalry unit able to charge, and then to "transform" into a regular ground-based soldier as the mounted unit is killed.

I don't like this idea, but it's your mod.

- The Mounted Commanders, Hoplites and Hypaspists Commanders will be altered depending on the changes made to the units they are supposed to command, but will be more or less the same as before.

Only mounted commanders. Or if you use a foot commander, it should be a Captain or an Admiral (see Conquerors of the Sea), with the sailing ability.

Spies are now made available (though weaker in Stealth than the other spies).

Spies seem a good idea for Byzantium (very thematic), no reason to tone them down.

The Strategos remains an elite commander, and will be given a supply Bonus apply and improved leadership because of better training/organisation.

I'd rather add an extra unit (baggage train) without any fighting ability, that costs about 80-100 gold and provide 25 supplies. An engineer for siege warfare would be also thematic.

will have one level 3 Priest and one level 4 Priest,

I can't see any rationale for the high priest power. Byzantium was rather unsuccesful at keeping Islam at bay.