Actually the war beasts and psions do represent Roman culture
War beasts: are like the lions of the gladiator games as we see in the final level a room full of bones and skulls with war beasts
Psions: they were forced into the cabal empire like in the early days of Rome there were soldiers that weren’t from Rome to help fight for rome
English
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The one about war beasts crossed my mind a few days before posting OP. I had a conversation about it with my brother who brought up that point but we couldn’t remember whether it was Roman, Greek or another group, however he made the connection to war elephants. The psions however i didn’t think about it like that. I will be editing OP. Thanks.