Notes from author
Basically it uses Roman/Spartan weapons and armor, it is mostly a mix of the two for the best combinations. You can feel free to replace any and all weapons with weapons you deem more fit to be either Roman, or Spartan. Naturally, Spartans are going to use more spears than swords, so you can always just do any spear you want. I chose the winged spear because it is the most rounded and has all stab attacks. Then I chose the Iron Round Shield and you can also strip all of your armor to a Hollow Loin Cloth for extra difficulty. Romans used leather armor so the Hard Leather set is the best set for the task, Romans also used great shields over round shields so you can feel free to switch to one of those too. The Broadsword is the closest to a Gladius, so I chose that for the Roman side of the build. I added in some magic and magic weapon so that it would be possible to cast magic weapon on them for increased damage should you need it for bosses, or pvp. It is your character at the end of the day and can make any changes to this build, as most will work. You may want to switch the dex and str stats if you choose to be Roman and use the Broadsword, as str scales better than dex at higher levels, should you choose to keep leveling past 125.
