RomanArmyTalk

I'm curious about the type armor and weapons would've been used by the Massilians since they were surrounded by Celts, I know they would have used theuros but I want to know more about them.

They were a Greek colony, surrounded by Gauls, a trading outpost of the Rhone river valley, who had been linked with the Romans since the mid-3rd Cent. BC. So my guess would be a mixture of all arms and armor, but with a heavier emphasis on Greek traditional kit.