Coop too easy?
I'm currently playing coop with a friend and we are both finding it very unrewarding. We are in Sanctuary for the second time and doing the side missions there (Ones that take you to Caustic Caverns, killing Slappy, etc) but they all have a "Trivial" difficulty and are Level 15-20 missions. We are currently getting 1XP per kill. We are Level 22 and 25.
When will the game get more difficult and provide us with harder enemies?