Unfortunately, I couldn't find any treasure that I want. At times, I was forced to take an early leave due to the surrounding enemies, forcing me to quit exploring or go directly to the next main complex map.
At the end, I completely missed Z and W branches, but visited DM and Zh instead. The Zh one is pretty good though because it gave me 3 prototype flight propulsions along with Exp. Propulsion Shielding, Adv. Power Amplifier, and Adv. System Shield. Not bad!
However, once I entered Research branch and then Testing, everything immediately went downward. Because I forgot to turn off my katana, I accidentally sliced up a serf (without killing it) which called for distress signal to alert a nearby researcher. And guess what happens afterward...
Because of my worst nightmare, I was forced to find exits as quickly as possible. And because of the programmers' massive EM damage, my stealth/flight build was falling apart slowly but surely. Due to my lost of hackware and massive system corruption, my hacking power is dying as well, making the rest of my run heavily RNG-based. I was completely relying on RNG to pull off difficult hacks like Level Access Points. This is especially true on Access floor where I'm starting to feel pretty naked already. Fortunately, I was able to pull that off.
By that time, I began sprinting for the finish line. I even had to use up my last Reconstructor AA to escape from the giant mob. At first, I ended up at the front entrance with the blue sealed door and Behemoths. However, the only weapon I'm carrying is a katana! (Which I've had it back from the Material level!) So I had to go all around to the backdoor in order to open it up. However, I was worried about two things: enemies accidentally blowing up the backdoor terminal, and repeatedly failed Open hack to the point of fully tracing me.
Failure is not an option. Either I could succeed against all odds, or die trying. There is no way I could survive from going back to the front door AND finding the right weapons to break through the sealed door. Behemoths + Programmers are too much for me to handle.
And this is the result:
So here's the lesson: Make sure your melee weapon is ALWAYS OFF when doing a flight build! A single mistake at a Research branch is extremely costly!
Lesson 2: Even a low-rating katana can be useful for breaking Access walls! However, that would require you to have a bit of momentum to do so reliably.