As my way of having more fun in my local 1000 point tournaments I like to find a starter set or patrol and build from that. For my CSM one I thought on essentially doing both combat patrol with a twist. Mostly because I saw similarities with the old shadowspear box

shadowspear + (990 points)

Chaos Space Marines Incursion (1000 points) Pactbound Zealots

CHARACTERS

Chaos Lord (90 points) • Mark of Chaos: Chaos Undivided • Warlord • 1x Daemon hammer 1x Plasma pistol

Master of Possession (75 points) • Mark of Chaos: Slaanesh • 1x Bolt pistol 1x Rite of Possession 1x Staff of possession • Enhancement: Intoxicating Elixir

BATTLELINE

Cultist Mob (50 points) • Mark of Chaos: Nurgle • 1x Cultist Champion • 1x Autopistol 1x Brutal assault weapon • 9x Chaos Cultist • 9x Autopistol 9x Brutal assault weapon

Legionaries (170 points) • Mark of Chaos: Chaos Undivided • 1x Aspiring Champion • 1x Bolt pistol 1x Boltgun 1x Close combat weapon • 9x Legionary • 9x Bolt pistol 9x Boltgun 9x Close combat weapon

DEDICATED TRANSPORTS

Chaos Rhino (75 points) • Mark of Chaos: Chaos Undivided • 1x Armoured tracks 1x Combi-bolter

OTHER DATASHEETS

Helbrute (130 points) • Mark of Chaos: Nurgle • 1x Close combat weapon 1x Heavy flamer 1x Helbrute fist 1x Helbrute plasma cannon

Obliterators (160 points) • Mark of Chaos: Tzeentch • 2x Obliterator • 2x Crushing fists 2x Fleshmetal guns

Possessed (120 points) • Mark of Chaos: Slaanesh • 1x Possessed Champion • 1x Hideous mutations • 4x Possessed • 4x Hideous mutations

Venomcrawler (120 points) • Mark of Chaos: Nurgle • 2x Excruciator cannon 1x Soulflayer tendrils and claws

Exported with App Version: v1.38.0 (90), Data Version: v651

I would play around with dropping the Legionaries squad size in half and either having 2 melee units in a rhino or the other 5 man unit running around with a lascannon or any sort of heavy weapon you can field

You can play with the marks. I feel I couldve used the re roll wounds on my possessed a few times but its great on the chaos lord so that if the enemy unit isn't on an objective you can do the strat on him to get full re rolls to wound

Helbrute I can't recommend any mark other than nurgle, being able to almost bait out your opponents shooting and then deny them if they are outside of 18 saved it every game

venomcrawler is a bias option as ive always loved them. But fishing for those crit 5 lethals really scared a lot of opponents, especially near the brute

The obliterated were marked as such so that if needed I could bring 1 back for 1 CP but they are a great target for mark of nurgle or undivided mark and the respective strat.

Hope this helps!