Basing this off of the singleplayer campaign, I'd give this game a neutral review if I could, I enjoyed some parts of it and some parts not so much. First off the game does look and sound amazing and does Warhammer 40,000 every bit of justice it possibly can, there's tons of detail everywhere and the environments and scale of the enemy hordes are seriously impressive. And it's not just a cosmetics thing, you can see the swarms climbing walls and such and you can destroy them. The basic combat once you get used to the parry and dodge system works pretty well and the weapons feel like they all have a use; I tried to use most of the weapons I picked up during my playthrough and there were few straight up upgrades, more like sidegrades.

The structure of the missions is very linear and there's generally very few things to find apart from audio logs. At the start of the game it felt like you got obstructed very often, I kept walking into invisible walls, but I think the game opens up later on more and the midway part of the campaign had the best mission variety. Sadly I think the campaign falls off towards the end, but other than that, I mostly had a good time. I wish the jetpacks would have been used more in missions.

Now onto the things I didn't like; the whole campaign seems designed more for co-op play than singleplayer. The AI teammates are generally very bad at covering you while doing objectives (+ they cannot do objectives themselves), and you'll regularily get pinned down by ranged enemies all the time, so in every encounter you have to hyperfocus the ranged enemies down first because the AI won't be doing that. At first I started the campaign on Veteran difficulty and I found it to be too annoying to complete with the AI so I switched to Normal after a couple missions and had a much better time. But still the squad AI could really be better, the game should offer a more balanced singleplayer experience. (EDIT: This was improved in patches which is good!)

Also (potential spoilers warning), the campaign isn't very long, I finished it in just about 11 hours, while generally taking my sweet time to explore as well. Towards the end it's like they forgot the beginning of the invasion (Tyranids) completely and the ending felt very cliche and Disney like. I did like that they introduced more enemies later on and I'm a fan of different than usual Chaos factions being represented but it felt like there should have been more story missions across all the planets. I know there's the Operations mode and Eternal War, and I expect that'll add a lot more playtime, but the main campaign felt quite short. (EDIT - Operations has been quite fun if a bit grindy, Eternal War is a pretty typical pvp mode and could use more interesting maps and customization imo)

The game ran well on my laptop with an i9 13980 HX, 32 GB RAM and Nvidia 4090 RTX 16 GB; on 2560x1600 resolution I could play it on high settings with ultra textures (without any upscaling), getting between 60-80 FPS. Some of the larger fights dipped as low as 50 but not below that. I'll probably test how it runs at 4K later on but I'd expect it to require some DLSS at least.

I didn't like that the game has no support for aspect ratios other than 16:9, so at 16:10 I had constant black bars on my screen all the time and it should really be fixed as it's a standard feature in PC games. Also, there was no support for inverted horizontal camera controls for gamepad, so I couldn't play it on gamepad since I use fully inverted controls (both vertical + horizontal) in all games I play; another thing that should be fixed and added to options. Had to learn to play on keyboard & mouse instead :p

TL;DR:
Solid gameplay; nice WH40K aesthetic; poor AI and mission design more for co-op; short campaign that falls off towards the end; some annoying missing technical features

Basing this off of the singleplayer campaign, I'd give this game a neutral review if I could, I enjoyed some parts of it and some parts not so much. First off the game does look and sound amazing and does Warhammer 40,000 every bit of justice it possibly can, there's tons of detail everywhere and the environments and scale of the enemy hordes are seriously impressive. And it's not just a cosmetics thing, you can see the swarms climbing walls and such and you can destroy them. The basic combat once you get used to the parry and dodge system works pretty well and the weapons feel like they all have a use; I tried to use most of the weapons I picked up during my playthrough and there were few straight up upgrades, more like sidegrades. The structure of the missions is very linear and there's generally very few things to find apart from audio logs. At the start of the game it felt like you got obstructed very often, I kept walking into invisible walls, but I think the game opens up later on more and the midway part of the campaign had the best mission variety. Sadly I think the campaign falls off towards the end, but other than that, I mostly had a good time. I wish the jetpacks would have been used more in missions. Now onto the things I didn't like; the whole campaign seems designed more for co-op play than singleplayer. The AI teammates are generally very bad at covering you while doing objectives (+ they cannot do objectives themselves), and you'll regularily get pinned down by ranged enemies all the time, so in every encounter you have to hyperfocus the ranged enemies down first because the AI won't be doing that. At first I started the campaign on Veteran difficulty and I found it to be too annoying to complete with the AI so I switched to Normal after a couple missions and had a much better time. But still the squad AI could really be better, the game should offer a more balanced singleplayer experience. (EDIT: This was improved in patches which is good!) Also (potential spoilers warning), the campaign isn't very long, I finished it in just about 11 hours, while generally taking my sweet time to explore as well. Towards the end it's like they forgot the beginning of the invasion (Tyranids) completely and the ending felt very cliche and Disney like. I did like that they introduced more enemies later on and I'm a fan of different than usual Chaos factions being represented but it felt like there should have been more story missions across all the planets. I know there's the Operations mode and Eternal War, and I expect that'll add a lot more playtime, but the main campaign felt quite short. (EDIT - Operations has been quite fun if a bit grindy, Eternal War is a pretty typical pvp mode and could use more interesting maps and customization imo) The game ran well on my laptop with an i9 13980 HX, 32 GB RAM and Nvidia 4090 RTX 16 GB; on 2560x1600 resolution I could play it on high settings with ultra textures (without any upscaling), getting between 60-80 FPS. Some of the larger fights dipped as low as 50 but not below that. I'll probably test how it runs at 4K later on but I'd expect it to require some DLSS at least. I didn't like that the game has no support for aspect ratios other than 16:9, so at 16:10 I had constant black bars on my screen all the time and it should really be fixed as it's a standard feature in PC games. Also, there was no support for inverted horizontal camera controls for gamepad, so I couldn't play it on gamepad since I use fully inverted controls (both vertical + horizontal) in all games I play; another thing that should be fixed and added to options. Had to learn to play on keyboard & mouse instead :p TL;DR: Solid gameplay; nice WH40K aesthetic; poor AI and mission design more for co-op; short campaign that falls off towards the end; some annoying missing technical features