Preparations:
There are two ways to start the instance
1) You can loot the 3 Bright Aether from the Unstable Aether Energy, open the gate and proceed to install the Machine guns quickly and go to the sweet spot as fast as you can. This way is faster, but you got about 3 - 4 extra seconds before the first monster wave spawns, so I dont recommend this way.
2) The instance gives you a 3 minute timer after you enter. You can loot the 3 Bright Aether from the Unstable Aether Energy, then use no gravity and go into the floor, pass beneath the gate and continue to install the 3 machine guns and placing the character at the sweet spot, you will have to wait 2 minutes or so to start the instance, but this way is easier.
Detailed explanation:
Once our 3 machine guns are installed we will proceed to find something I call our sweet spot.
Sweet spot location:
Description:
This instance is mostly completed using two skills "Soul Skewer and Crushing Darkness",I know by experience that all the waves have some patterns in common, in example:
Waves 1, 3, 4 and 7 comes with lots of monsters who will inmediately reach the barricade with 0 metters and attack it.
Waves 2, 5 and 6, have two kinds of monsters, a few of them are melee, they will attack the Barricade, and there are also ranged monsters which will be at 12 metters of the Barricade.
The main idea of this sweet spot is placing your character in a middle position, where you can either hit the ranged monsters and also the melee that are in front of the Barricade and at the same time making sure you have enough height to not be attacked in case you get aggro.
By reference the position I use is: 4 metters above the Frontal Barricade, and 6 metters to the left.
Detailed explanation:
We already completed the instance preparations.
Now we just need to spam two skills:
Soul Skewer and Crushing Darkness
With our current position, it will kill all the monsters around due to its huge range.
Mini Boss:
There is a mini boss that appears after every wave "MAD-74C":
1st: 00:58:35 approximately (it depends on how fast you clean the wave).
2nd: 00:56:35
You need to kill this mini boss using the "Hellish Wave" skill
I strongly recommend to do a constant checking for him, in example, "/select MAD-74C" and "/Skill Hellish Wave" when he is 2m-6m from you, this way you dont leave your sweet spot. You gotta be fast or he will destroy you and your frontal barricade with his 1 hit K.O Destruction.
After a few minutes all the waves must have been cleared and the final stage starts.
At this point you need to travel to the green acid pool and go 5m above the boss MAAD-S, then start attacking him before he gets out of the acid, if that happens the NPC will start attacking him and getting the aggro back will be somewhat hard.
Once you get aggro you start hitting him constantly with Terrifying Rupture and Hellish Wave. Move close to the frontal barricade so the guards start hitting him it will make it 10 times faster than killing it by your own. Remember to keep moving every 2-3 seconds to avoid boss reset.
Detailed explanation:
After you kill the boss, two rewards will appear, an Infected Flesh Lump, which contains an quest item, and also 20 MAAD-S Core Fragment for exp.
BONUS:
As I mentioned in the tutorial, there are different difficulties with each wave, since this instance is completely random, chances you get a combination of the 3 ranged waves (2, 5 and 6) is possible. You can add a self healing option to this script, just by walking a few metters into the fountain, there's no need to change the sweet spot height, the character will get it anyway.
That fountain appears every wave, so you can heal two times to make the script super stable.
Detailed Explanation