Recommendations for Seleucid Army compositions.

[Stark]

I really like phalangitai, immovable wall of spears they are. But in my AS campaign I'm planing an army reform, remaking my army into somewhat standard formations of Thureoporoi, Thorakitai and Peltastai, with medium cavalry as support (something vaguely similar to Legion system). That way I get much more mobility and tactical freedom. Phalangitai are really only good when acting as a wall holding enemy army, while Thureoporoi and Thorakitai have much needed flexibility and don't depend on strong cavalry arm as phalangitai.

I still want to keep some phalanx based armies though.

Another advantage of T&T's are that they are recruitable in much larger area.

[Titus Marcellus Scato]

Phalangitai are really only good when acting as a wall holding enemy army, while Thureoporoi and Thorakitai have much needed flexibility and don't depend on strong cavalry arm as phalangitai.

Quite so. Would be interesting to see which is better for the Seleucids, traditional Macedonian phalanx with lots of heavy cavalry, or flexible articulated heavy infantry and only a little heavy cavalry.

But I resist this change myself since such a change away from heavy cavalry is basically an admission that the Roman military system is better than the Seleucid system. In terms of sheer national pride, this is a bad choice for the Seleucids. They would do it if they had to, not because they wanted to.

[Stark]

Well, if Romans themself abandoned their focus on heavy infantry, my Seleucids can experiment a bit

That's the beauty of Arche Seleukiea, they have a really diverse roster so can completely change your fighting style when your current one starts to bore you.

[Lazy O]

East Of Babylon:

2-4 Hetaroi (General included)

6- Panda Phalanx

4- Persian Archer/Archer Spearmen/Mardian Archer/Heavy Persian archer/whatever

2- Slinger

Babylonian Shipri Tukul- As many as you can

West of Babylon

6 Panda Phalanx

4 Shipri Tukul

4 Galatian Kuarothoroi

2 Heavy Archers (Syrians/Persians/Cretans whatver)

As many cavalry as you can get your hands on

Pretty simple

[athanaric]

Parthian Spearmen are rather cheap and comparably resistant to arrows (from the front). They make good garrison troops.

The basic Iranian combination, which is really cost-efficient, would be Parthian Spearmen, Eastern Axemen, and Persian Archers (or Archer-Spearmen if you want to use them more aggressively).
Other than that, Shipri Tukul and Thorakitai are a great asset against heavy cavalry.

Personally, I would try to use several different ethnically more or less homogenous armies at once. The Seleukids are probably the best faction to pull this off due to their extremely varied recruitment options. You can field a Makedonian army alongside a Persian, Saka, "Roman-style", Galatian, Mesopotamian and Indian army each.

[Lazy O]

Eastern Axemen is a big no no, they will get shot.

[athanaric]

Not if you use them correctly.