Originally Posted by Nozza x360a
Challenge Accepted 30
Completed level 1 of all non-level-specific challenges with a single character
There's many challenges in the game which you'll need to complete past level one for this. Some will come through natural progression and are easy, while others will require certain guns, elements or types of kills.
Take note, that there are also some unique story related one's that you'll have to look out for. These will require you to search for some hidden Vault Symbols or do something during certain boss fights.
For a full list of all the challenges, please go HERE.
Story related and/or bossfights do not count towards this achievement. Only weapons, grenades, duels, cars and so on