This solo is by far the most interesting challenge I've taken on in this game. Most of the other solo encounters in this game are difficult because of difficult movement, but this encounter tests focus and reactions more than anything else. It has been completely strat crept and power crept leading up to now, which helped me a lot in finding my way through this challenge.

As per usual, some insights:
This encounter is definitely up there when it comes to worst encounters for wasted time. Each run requires 5-7 minutes of ammo farming, which can be wasted so easily with just a single mistake in the run. There's also a bit of psych to it as well, since every run you're starting relatively cold coming out of a monotonous setup. I can imagine this effect being even worse in the context of a flawless run.

0:00 1st gatekeeper
0:45 2nd gatekeeper
1:52 3rd gatekeeper
2:58 4th gatekeeper
4:00 Central conflux

I owe a lot to Ziran and Clarke who are both extremely knowledgeable in this encounter and taught me some of the strats that I use here. If either of you made it to this video, thank you so much.