Let him who desires peace prepare for war.
The strange thing about Roman soldiers in the comics was the amount of trouble they took over their armor and their helmets, and then, after all that, they left their legs bare. It didn't make any sense at all. Weatherwise or otherwise.
Jesus didn't really die-someone gave him a long drug that made him look like dead, and he revived in the tomb. Answer: Roman soldiers knew how to kill people, and no disciple would have been fooled by a half-drugged, beat-up Jesus into thinking he'd defeated death and inaugurated the kingdom.
It was not the people or the Roman soldiers who put Jesus on the cross - it was your sins and my sins that made it necessary for Him to volunteer His death.