I am pretty sure you would have to walk through playthrough 1, 2 and then unlock 2.5 in order for enemies to be level 50. --- PSN: KillingLegacy Gamertag: Killing Legacy "Be polite to others, and do not act in a way that you would not act in person."
The enemies are set in most areas with a few places like The Fridge and Caustic Caverns that will scale at certain points during the main story mission. So, if you PL from 1 to 50, you will still be fighting level 3s at the beginning. --- GT: Xero Kogari