Sigma Primus
 Skitarii Build - Warhammer 40k: Darktide 

My current favorite build and playstyle for the Skitarii hands down. I change weapons all the times, so I'll write up notes on each as I go.

*Currently working on a damage and hitmass breakpoint list with and without specific blessings/buffs.*

With this setup I can easily take out key specials or elites, I'm capable of deleting bosses, and I can create space for not only me but my team in a myriad of ways. With game knowledge and skilled play, this can deal with anything the AI Director throws at it. It also lets me easily swap to any blitz or go all in on the Chordclaw Strike  with Redline Capacitors instead. 

I find that I want ~50% bonus damage from talents active at any given time, otherwise my breakpoints on all of Skitarii's weapons are kinda rough. It is very easy to have Channelled Motive Force, Moebian Conductor, and Flensing Protocols activated on demand, and with Sequenced Charge there to act as a buffer in case of lost Flensing stacks, its very easy to maintain that average damage bonus. Sustained Assault Doctrine and Weakness Analysis Doctrine are easy to monitor if you're trying to min/max your Chordclaw boss damage. Precision Combat Augurs is pretty solid as well, but since it only lasts for 1 hit, I find it less versatile than other damage boosting talents.  Hybrid Combat Covenant is a solid pick with a lot of value, unfortunately its placement means I only take it if I'm planning on bringing either talent leading up to it or going for Power Overload for some reason. Galvanic Marking Array is also very strong, but due to the class's ammo economy across the board you're gonna probably only run this with a specialist vet or a team who doesn't use much ammo.

Weapons

The Branx Mk CV Galvanic Rifle really only needs Opening Salvo to put in work. Headhunter  dramatically increases your crit rate and probably the best 2nd blessing for the gun, but it doesn't quite damage amp like other blessings. Trickshooter is just fun, but gives good returns into unyielding/bosses. Honestly, anything can go there in the 2nd slot. Favorite gun in the game hands down. Sounds wonderful, feels great, has excellent performance, and looks gorgeous. Only issue is the low ammo count, I feel like it needs ~10-15 more rounds total at base. You'll run dry a lot if you don't have Survivalist with the amount of specials we get in H40 now, even with Ammunition-Restoration Pod.

The Branx Mk XI Phosphor Blast Pistol is really fun and provides solid mobility with some good damage. Slap Opening Salvo with Crucian Roulette on it and go to town. Same ammo issue as the M1 Gara- I mean Branx Mk CV Galvanic Rifle.

The Branx Mk XI Paired Transonic Blades are such a wonderful change of pace. The style change is fun. It adds a lot of mechanical nuance to what you are doing moment to moment, especially paired with the new blessing. Deadly Frequencies is actually a phenomenal blessing and maybe brings these into my top 5 favorite weapons. It isn't your next melee attack that is buffed, its your next three. You end up with this really fun rotation of swapping modes all the time (mode swapping blocks attacks similar to Munitorum Mk II Relic Blade) and being rewarded for it. I feel Precognition and Riposte are not BiS choices on this weapon since they are only +16% and +45% respectively. Shred is easy to rack up and gives 4% more, and since I already have on hit buff talents, it makes sense. While my heart wants to continue using dodge blessings, Shred is probably best.

The Branx Mk VI Mechanicus Power Sword is a breath of fresh air! The moveset has this wonderful combo flow where the heavies and lights really can go anywhere, it just depends on what you need the weapon to do. Once you really learn the moveset, it flows so naturally. If you've ever read the Wheel of Time series, you might understand, going from combo to combo feels like the series' sword forms "The Moon Rises Over the Water into Soft Rain at Sunset." It has fun blessings that work well with my playstyle and can hit really solid breakpoints. 10/10 weapon, no further notes.

Build and Talent Notes

Still tweaking around tertiary talents to see which I like better.

• Weakness Analysis Doctrine is a really helpful node for the dual blades so long as you bring Electro-Strike Conduit or have someone on your team applying burn/bleed/blaze.
• Ablative Wards  is nice if I can't be fucked to worry about blight/pox. With Beacon of Purity or Stimm Supply you are immune to blight. Without, you will take ~140 total corruption damage over the course of a mission for 90% resistance. Definitely a solid node and easy to fit. 
• I will never bring less than 2 of the 4 Capacitance talents I will often bring 3. Reactor Coil Recharge consistently gives the most recharge in my testing so I usually bring it. Augmented Power-Cycle is comfy and I almost always bring it too. Capacitor Reclamation Loop is most useful into The Encroaching Garden or Rampaging Enemies since those modifiers will often mess up your breakpoints. Flux Conduit Build-Up is probably the 2nd best regen talent, but I typically only take it if I'm both running Last Stand Relay and am going for 3 of the 4 regen talents.
• I would like to fit Kinetic Energy Distributors since it works so well with Adaptive Combat Engram, making you very safe with just 2 points, but I would have to sacrifice something to mkae it happen
• Ammunition-Restoration Pod is very helpful. I don't think I've had a H40 game on this class yet where I wasn't thinking, "If only I had like 15-20 more bullets for this thing." It isn't a game breaking amount of ammo (4 bullets per minute on this weapon). I will still run out quite a bit if I'm the primary special killer. One huge issue: I typically can't fit it...
• Electro-Strike Conduit is a pretty solid talent and I typically put my last point in my builds here as kind of a cherry on top. It is also typically the first thing I sacrifice if trying to pick up a specific talent like ammo regen.
• Shockline Breach Protocol is comfortable and really helps with density and hitmass H40 throws at you. Its also not integral to the build so is often another sacrifice node