ill try to put short as i can there of termology behind that ok when alcmene had hercules and when kratos was born hes the qaurter blood brother he wasnt talked about oh yeah kratos was not his real name his real name is cratos means[stregth] name and hercules was the demigod and so on. kratos was a spartan warrior and but when they took on the persian army and but he yeld to the heavens and said *ill give you my lands if you let me live*but incording to the game he says aries but he got the weapons
i meant cratos[strength] sorry. thats when he was taking orders from the heavens to bring down olympus and the gods and so he was called the marked one of distruction is what he took on to purified the lands. there more but idk if im allow to post more on.
in greek term he was the son pallas and styx and he was winged enforcers for zues and another strand kratos is a titan who binds prometheus on order of hepheastus.