In the release of Chapter 12, we were also given the release of a new dungeon-like area that some in my faction have lovingly dubbed the "Override Construct," located in Downtown. Inside, there are a whole slew of Level 55 and 60 NPC's known as Override Functions and Override Executables.
One of the first things we noticed about this place and the opponents within, is that the trick to get through it lies in strategy. For that reason, I've developed this poor attempt at a guide, detailing how to get there, how to negotiate your way through, and how to obtain the Shells and Kernels from within. This has been extensively tested and verified with me and my faction (Pluribus Neo, Recursion) and seems to work, so long as it is followed to every detail.
Reaching the Construct
Your first step is to proceed to Union Hill North, Downtown. This will be the location that you and your team will gather, to make finalizations to your loadout(s), and buffs. The following builds will be helpful:
1. Martial Artist - This will be necessary to keep the Override NPC's in interlock.
2. Gunmen and Master Knife Throwers - This will be necessary to deal area damage to NPC's while they're in interlock.
3. Proxy Master - Using a simulacrum while luring Override Executable NPC's will keep them from spawning additional Override Function NPC's on you and your team.
Other abilities you may find helpful are Recall (Team or Single), Rez, and Disguise. Note that using Sneak will be futile around the Override NPC's, as they will detect you almost immediately. With Disguise, you have a timer while your Disguise is in use, during which you can run between rooms to get into "safe" areas within the Override Construct.
An additional note: DO NOT USE AREA HACKS!!11! I cannot stress this enough, as area hacks used on any NPC's inside the area will ALSO affect other NPC's, in other rooms, and bring tons of them pouring in on you.
Once you've got your team ready to go, the entrance to the hallways to head to the construct will be located on the top-most rooftop, on the building just beside the hardline:
When you enter the white hallways, the first place you'll find yourself is in a section of the hallways that looks like the following image. To help with any potential problems, I've outlined which door you should take:
Once you've entered the second door, you'll enter a second section of the hallways, but now you'll find yourself in the presence of two hostile Level 55 Override Function NPC's, waiting in the center:
Here, you have two options. You can either attempt to fight the Level 55's (you can farm the shells here, from them) or you can bypass them completely (Disguise and/or Hyperspeed) and enter the last door to the left, straight ahead. When you've done the latter, you'll find yourself inside the Override Construct:
Note that I've marked exactly what room you'll be ported into.
The above map is accurate, in terms of what types of NPC's are located in what rooms. I've also made a point of marking the hardline exit from the area. Now, if you're after the Kernel, the NPC you're going to want to go after is the Level 70 Override Executable NPC, as marked above. Anyone using Disguise should have Recall loaded, and proceed to the room JUST PRIOR to the Level 70 before teleporting the team in.
Once that has been done, ALL TEAM MEMBERS should move as far into the Southwest corner of the room as possible and stay there. The person with the simulacrum (using Disguise) should open the door to the next room and use the sim to pull one (two is fine, with a big enough team) of the two Override Functions into the empty room with the team.
Once the NPC is in the room, WAIT FOR THE DOOR TO CLOSE before attacking it. Else, you'll pull the others from that room inside with you, and you'll all be obliterated. When you've killed the Override Function, DO NOT LOOT it until the Executable has been killed. Repeat this process until you lure the Executable in and get it killed. It seems to drop a Kernel almost every time, though I can't guarantee that.
We did this with a team of 12 people (two mission teams) and it became a pattern:
1. Kill the two Functions, do not loot.
2. Kill the Executable, loot all three NPC's.
3. Two Functions will respawn in next room, lure them in and kill them. Do not loot.
4. Executable will respawn in next room, lure it in and kill it. Loot all three NPC's.
5. Rinse and repeat.
Hopefully this tactic will help others as much as it's helped us.