Yeah, the Persians look a bit stereotypical, and there are no archers mentioned except on the Greek side. The Persians with 8 foot spears and wicker sheilds (who made up the majority of the army) also carried bows AFAIK. There are also no details on the immortals, who had a thin layer of mail (as seen in a documentary I saw on the History Channel about Thermopylae, which is the most historically accurate depiction of the battle I have ever seen) and besides that fought like much of the Persian army, though their equipment was higher quality than the levies from the Satraps.