Rome,Persia,Arabia and the Caucasus in 224 image - Ancient age mod for Victoria 2: Heart of Darkness

I'm creating this mod after i dropped out on my last one (Ulitmate SubMod more timeline) because everything was falling appart. This mod will be from 0 to 476 it will feature the timelines if you have extended timeline mod on eu4 it will feature those and maybe more like the birth of jesus christ , and maybe more notable events from the eras. It will take a while to create this mod. if you don't know the timelines are the Roman-Parthian war on 58ad , the rise of the sassanids 224 ad, the Barbarian invasions 395ad and the fall of the Western Roman Empire 476ad. This mod will be divided into 3 the next mod will feature timelines from 476 to 1066 and the third one from 1066 to 1453 . I am requesting help from someone who knows how to make land and naval units and maybe knows how to change the 3D animations when soldiers and etc spawnç. all the Units will be changed like Irregular will be changed to regular soldier, artillery to catapult, Cavalry to Knight, Cuirassier will remain the same