(Renamed)Help me make a narrative campaign

[LordPathos]

Both are open/narrative play so it uses power levels. CA says Attacker should have a higher power level than Defender, but Defender gets free fortifications. Just how much higher should the Attacker be? I was thinking (using arbitrary numbers) if Attacker is 75 PL and Defender is 50 but gets 25 PL worth of fortifications. Is that a good way to keep it generally balanced? Anyone have a good system?

*ADDITION EDIT*
I am trying to make a campaign with my friend. In my head it is amazing. It is gonna be Orks vs GSC and slowly adding Tyranids. Kinda like the GSC rose up to halt the Ork invasion as they are waiting for the Nids to arrive.

We are going to increase the PL with each game or so, maybe every other game. When I start introducing the Nids, its going to be following a standard Nid invasion. Gargs, Stealers, Lictors, Harpies first, along with Warriors for synapse and more basic things like gaunts. Middle games I will had Tyrants, Zoans, Fexes, maybe a Terv, and the underground stuff. Then during the later games add the big MCs, artillery, and feeder beasts.

Now what about Orks? I don't know how Ork invasions work. I figured they just throw themselves out of a space hulk already screaming. I'm thinking first games use Bikes, Trukks, Buddies, Copters, maybe Stormboyz, Nobz, lots of Boys. Any Meks or Warbosses can be on bikes. No mega armor yet. So pretty much really fast things would make it. Middle games we can get the jets, wagons, and cans and dreads showing up along with the different kinds of orks (burnas, tankbustas, etc). Later games can be the Mork/Gorkanauts.

Any suggestions with this?

[mattblowers]

I don't think the narrative play is trying to keep it balanced. The way they are written it's like they are setting up a lop sided scenario to give the name a narrative frame. It can be a lot of fun to just go with it and see what happens. Try the Open War cards. They are a lot of fun, but can completely (please do not swear) over your army with the twist. If you want balance, matched play is the closest thing to it.

[LordPathos]

I wasnt aiming to making things 100% balanced, its just I would like there to be some sort of struggle where the game could go either way. But If Im defending with 50 PL and Im up against 100 PL, that's a bit extreme.

[killercroc]

Try to make it reflective of what you're assaulting. So if it was an outpost then have a bunker, razorwire fences and a defensive gun. Whereas assaulting a base it would most likely have a few trenches, forward bunkers, AA guns, etc. I think that might get you closer to a reasonable balance.

[LordPathos]

I have more questions for the campaign Im making. I changed the name of the thread and added more to the first post. Just so I'm not making a new thread when it all relates.

[killercroc]

Orks are a bit different cause it depends more on the Kult than the point in the army invasion. Goffs will be lots of Boyz and Nobz. Evil Sunz will be Warbikers and Trukks. Badmoonz will be Battlewagons and Mek gunz. etc. So it more depends on your friends force than anything else. But if you wanted to grow with it you could do a sort of typical warbad faction that starts as a Warboss with his Nobz and a bunch of boys, then add in meks and machines after that. Now if you wanted to be really fun Orks do tend to start using the enemies tech against them after a few battles so your friend could make some looted Tyranids if he's big into converting.

[LordPathos]

Orks can loot anything.

[LordPathos]

Alright so fine tuning a list to make it more or less narrative friendly shouldn't be that hard to do. However, figuring out how to decide the missions is. At first we were going to do 3 missions with the Orks as the attackers, then the Tyranids as the attackers alternating between Planetstrike and Stronghold Assault missions. But after looking at the BRB on campaign trees, I think that could be way more interesting.

Im also thinking of having more than 1 Warlord once the power level starts getting bigger. Similar to Apoc games. Like 1 Warmaster and 2 'lesser' Warlords.

This is what I have so far:
First game is a Patrol mission. Its neutral mission, no attacker/defender.

If Orks win, they caught GSC unaware and next mission will be a Seize and Destroy PS game(Orks attacking), to show they are coming in to destroy everything in typical Ork fashion.
If GSC win, they were prepared and moved away from the Orks initial land zone. Next game will be a Bunker Assault SA mission(Orks attacking) where the defends get to shoot artillery at the Orks.

If Orks win Seize and Destroy, next game will be Big Push SA mission (Orks attacking). Defender buildings are weaker, ranged weapons don't work til T4, attack gets MW against buildings too.
If GSC win Seize and Destroy, next game will a Stranglehold PA mission (GSC attacking but Nids are introduced).

If Orks win Bunker Assault, next game will be Crossfire SA (Orks attacking). This one has 3 separate deployment zones, will be a good scenario for the Nids finally showing up.
If GSC win Bunker Assault, next game will be Desperate Assault (Orks attacking). This game lets the defender decide where the attacks board edge is.

So far I'm trying to make each mission make sense narratively. And I'm stuck on what to do after this. We were only aiming for 4 games total but we wouldn't mind extending it to 6 at the most. I would like to get the All Out Assault and Last Stand SA missions in there too. AOA is where the attacker can return dead units back on 5+ (3+ on infantry) and even remove units or single models with less than 25% models or wounds to auto return next turn. This sounds great for Orks or Nids as the attackers.
LS is where the defender has 3 Infantry units that MUST survive the whole game. This sounds more geared towards Nids as the attackers, but Im sure we could figure it out to work for Orks.
My friend and I agreed that the last mission should be a huge, apoc-style battle. 150 power level at least.

Anyone have any suggestions on where to take it from here? You can make suggestions to change the missions I have already, Im still in draft mode.

Aaaaand go!