A guy at my local wargaming club actually has an army with this exact paint scheme.

The entire narratives of most sci fi franchises can go from beginning to end before the imperium can even deploy their forces into battle.

Is this something happening outside our circles?

That's almost certainly what they are trying to say. Shame it doesn't matter at all because it's not what it says and if you're going to engage with rules earnestly you need to take them at face value. Whether it's their intent or not they've fucked up and it's a poor look.

Oh hey I recognise that army

I like it and can I suggest making it all competing in tournaments instead of real warfare. Makes death rarer too which will suit campaign play well.

These opinions aren't mutually exclusive

Chaos is undercut as an existential threat to humanity because human gods are real and present. In 40k you can worship a corpse or fall to chaos and actually engage something with actual power. It makes the temptation aspect actually coherent and meaningful.

These are so cute

Can't wait to see it painted.

I agree but what you're describing isn't a round robin. Your talking about a winner stays on or king of the hill format. Round Robin is when everyone plays against everyone over several matches, possibly simultaneously in parallel. Which actually sound like what you want. They are hard to run though

Im loving your work kitbashing that sniper