Possible 40k Campaign

I was looking through the rule book recently, and I think it would be great if we could assemble a campaign game with a couple of battles, what do you guys think?

sounds like a cool idea, the only question I would have is would it be ascending or descending?

i.e

ascending: assume this is full assault of a planet first couple of games would be like low-point planetstrike, scout missions, and as the campaign progress both forces call in more reinforcement (players points strategems also this means that anything that dies you can bring back as we assume they have spares, except for unique characters)eventually getting to a high point game (2k-3K possibly even an apoc)

descending: each force starts with a certain amount of points and a certain army list and before you is a map of the world with different battle sites both players(or teams) take turns in which they decide what to attack and with how much( i.e how many points their going to put into taking that place as well as strategem points) each place you take gives you a certain amount of strategem points or the ability to "recruit" things back (like squads and vehicles and etc.) as the campaign progress your trying to take out your oponents fortress however each battle you have fewer things to work with as anything that dies stays dead and very few ways to get reinforcements and so each battle is decided by the players on how many points their willing to capture that city with compared to that mountain range

The real question is whether or not you want a narrative or rules oriented campaign. Narrative is just a story line and maybe a map, which is fun and keeps games balanced. With actual movement and campaign rules things get more complicated but can be really fun too.

I figure a narrative/rules hybrid would be fun so, it would mostly be narrative with a couple of rules, ie- if you lose the preceding battle you need to roll higher for reserves, or you can't use certain units.

then that would favor the more ascending fluff based campaign as it is a series of pre planned battles that for each of the "minor" battles you wing your team would get a bonus in the "final clash" I.E an apoc game or something of that sort so we wouldn't need a board and it would have a lighter fluff background

something like:
https://www.youtube.com/watch?v=De4iZF9yKac&list=UUB7Oh3IutwUQ5ZO5GVGIgaw&index=2&feature=plcp