how to beat Gene Stealers

My army is Battalion of obsidian rose ( 2 archon blaster each, 5 units kabalites blaster each, one venom) Spearhead of kabal blackheart ( 2 dissie razorwing, 3 dissie ravagers, archon, 6 venom)
battalion of alaitoc elder (farseer skyrunner doom and executioner, warlock skyrunner jinx, 3 rangers).
Other guy ran about 160 models of genestealers. Turn 2 was devastating. Brought in 10 bikers with grenades at 3 inches. He used his one time vect to vect my vect. They grenaded twice on movement and his shooting turn. Killed venom and flyer. I blocked the spell where he takes over a unit which was my flyer but he then used mental onslaught which I failed to try to deny and he took out the other flyer. My return fire was brutal and killed the bikers and took out a lot of his advancing troops but on turn 3 he dropped in the rock cutter guys who only needed an 8 inch charge as he is plus 1. I vected his other attempt at a 3 inch drop with flamers but he just deep struck some other units. made both charges and kept coming forward as well. Sniper pistol dude came in and took out warlock as can be brought in by psycher if you have reserve points available and psycher doesn't use spell
He had bunch of other tricks he didn't even have to use. TONS of units and 25ish command points.
I know having wyches or something is an option to try but even then not sure it would have made much difference. Any thoughts on playing and defeating GSC with both options shooty venom spam and CC builds?

Its fairly easy to win against Genestealer cults
Step 1: get up
Step 2: run away

Like in many other cases I would try coven to keep your shooting units save. Never played against the new genestealers, so I can't give much more advice. Sry.

You have fly units, place them on top of Terrain, makes their 6-9" DS's that much harder to get to you, place Kabals out of transports to force them to be even farther away from your important units.

After than, just move 16-20" away and shoot.

Ragnos wrote:

Like in many other cases I would try coven to keep your shooting units save. Never played against the new genestealers, so I can't give much more advice. Sry.

They can DS a good amount, lots of S3-S4 shooting (literally can have hundreds of shots) tho its all BS 4 as well. They can DS in on you 6-9" and still able to charge.

Their heroes are good, all of them are extremely useful, not all are powerful, but the are able to each do something good.

The Bikes will completely ruin anything without 4+ invuls, so stay away from them.

Aberrant are melee monsters, way stronger than out Coven in melee, dont melee these guys. Any good GSC player will put a character with them in DSing so they can get better Cult Ambush.

They always have brigades, if they are not playing a brigade they are playing for fun, so CP is easy for them to get and use.

Over all, they are one of the best armies in 40k, the single best mono codex for sure, but they are extremely paper other than a couple units. If you can catch them out in the open they will fall very quickly. They hit hard and fast, but run out of steam.

Counter their deployment and first 2 turns of movement is the best way to beat them, Target the hard hitting units first as well. For us its the fast moving units like the Bikes, dont worry about the Shotgun guys, you can move away from them.