Skip it and leave all those containers with useless crap alone. I wanna try to make a Clint Eastwood Jeff Southcave using pistols as primary weapon with throwing and decide to abuse Wasteland Hawk(or Hammerer if I find high aulity frame) weapon damage and cheap AP cost special attacks especially point shot with JKK suit equipped. * You don't need points lockpick or hacking at all. With stealth sniper you can one shot Tchort with minimum hassle without completing the Mutagen puzzle (easy difficulty, classic XP). I felt like rage quitting so close to the end because of my obsessive completionist, but just soldier on. You can still proceed without them, or don't feel bad about using the guides.

* There are a couple of puzzles that are basically unsolvable without a lot of work and guides (Mutagen puzzle in particular). Adding insult to injury is the fact that many quests have multiple ways to solve them, and if someone actually chose to take up Vivian's cause, it could have easily led to say, finding Cornell, as they could have been involved with Vivians murder, or loosely connected in the espionage plot in some way. I had begun a playthrough on psi, and after the changes midway through, I was a little confused as my character didn't function the same, and I gave up and started over. * The game has received many big content and functionality updates over the past years. If you start to feel like you are nearing the end of the game and was a nice 4 hour experience, but kind of don't see what the big deal is all about, you are not even close to the end and later game dialog and diversity of quests is much more interesting and endearing (Dude from Expedition / Core City). * Many of the area transitions and doors were very difficult to see and there are also important items/quest that can bottleneck the game. Its the same as oddity except faster XP gain. * Play on Classic XP for easier progression. This has been consistent in my first and last plythroughs. * Difficulty is as much based on your build as on the game settings, a stealth based sniper with SMG backup was a pretty easy build for me to get through all combat situations.

A lot of additional fun content, and in retrospect, the base game would seem pretty barren without it if I were to go back. Things I wish I knew for first playthrough:

Underrail walkthrough jkk