Found this PDF when trying to look up information about the game. Gives a good overview of what a causal run of this game would looks like. Also includes a full labeled map so you don't have to remember where EVERYTHING is at all times.
https://drive.google.com/file/d/0B8_3XSEWPXkzd3ctTl9MUWE1Y1U/view
It is a bit outdated (Sanctuary has different symbol for example, and perk and their locations mentioned have been changed), but still has generally correct information
Edit: With the Finisher update, the above guide is still fairly good but is not really outdated.
Region 1:
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West Power is now right after next to the door that needs power to continue upward.
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Jump ability room now exits to the path that leads to the green East power area instead of the Vista.
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Area around the East power area is fairly changed. No longer go down -> right to get to the gun, but now right -> down.
Region 2:
- Horde fight at the bottom of the Vista room no longer has breakables that may have healing pots.
Region 3:
- Elder Fragment has moved from Top left of the map next to the top most west elevator exit, and is below ability lock that leads to the endless horde area in the bottom right.
