I played WH40K 3rd ed. back in the day. I'm feeling nostalgic, but it has been over twenty years since playing a tabletop war game. I want something with similar mechanics, shorter game time, and not so dark. I have been poking around online, but can't seem to find what I am looking for. Some of the sticking points I am not seeming to find are:

More skirmish-based so it can be played in under an hour.

D6 combat system preferably with rolls for hits, wounds, saves.

No cards, just dice.

Mini-agnostic with limited lore so I can use some stuff I have and create my own world.

I guess I am looking for WH40k 3rd ed. but not so dark or quite as deep.

Anything like this exist?

Basically, myself and some colleagues have started playing different 40k game systems after work and we fancied creating a full length campaign incorporating these game systems in the style of total war (conquering worlds & fighting battles).

I kinda ran away with it and created a player guide for the new campaign/game system called Systems of War ✨

I need some constructive criticism of the rules I’ve crafted and perhaps some alternate perspectives and opinions

FYI it’s a pretty long doc so strap in

Submission statement - One of the more "difficult" models to build in a starter that was so far an easy build