Hey, Ive been working on this plugin for a bit and thought it was an interesting concept! I haven't seen many other plugins like this so I decided to make it myself, anyways
ABOUT THE PLUGUN. For now It's a plugin with the purpose of being used for fun, In the future I plan on making soldiers and troops obtainable in survival mode. FOR NOW THOUGH,
There are 2 sides. Persian and Roman.
To summon a unit of Persians the command is /createnpc_persian
To summon a unit of Romans the command is /createnpc_roman
These npcs will then fight each other and you get to watch them die

.
To get Custom Items:
/customroman (whatever item)
/romanarmor (whatever armor)
ALSO PLEASE DON'T LEAVE A BAD REVIEW BECAUSE OF A BUG, put it in discussion. 
youtube channel, https://www.youtube.com/channel/UCxJiRAfCWsQAlsfH5u_4-VQ