Hey, let's talk about 40k for once, eh?
It seems like all I do is reimagine my Orks, must be me trying to find that needle in the haystack of suck :/
I do so love my Battlewagons, they're the best transport Orks have available. I know it's not saying much compared to Trukks and Looted Wagons, but I'm a fan of the BWagon. Good frontal armor, reasonable cost, and even with open-topped they can usually last long enough to drop off their cargo. KFFs are essential as always.
I had been using Shootas and Sluggas in Wagons, but they really haven't been working out. Sluggas always have the same problems: they die too easy and get pwned by anything that charges them. I've been using a Warboss to give them some extra punch, but they always end up dying and he goes solo. Shootas were originally a midfield unit, riding up in a BWagon and gunning down infantry. They put out impressive fire, but they just don't have the versatility I've come to expect from my marines. All they do is kill infantry, and I'm pretty sure I have units that do that already. I can just stick Grots in Wagons if I'm gonna sit them at midfield. I can use the extra points to get more essentials (Lootas, Buggies), plus I can buff the Wagons with 'ard cases and use them as cheap diversions.
Nobs are always solid, they will punch out just about anything that comes their way. TH/SS Termies are my biggest concern, which is why I've gone for more normal Nobs to absorb hits and maybe kill some before they can swing. It takes 13.5 attacks to average 1 dead Terminator (compared to 5.4 PK attacks), so maybe that won't work so well. It's easy to spend tons when putting together a Nob mob, so you've got to find a balance between killyness, 'ardness, and cost. For me, 6-8 Nobs with 2-3 PKs with requisite Painboy and Waagh! Banner works well enough.
Here's 2000 points I'm thinking of using now
Warboss w/ powerklaw, cybork body, kombi-skorcha
Big Mek w/ KFF
6 Nobs, 2 PKs, Waagh! Banner, Painboy, cybork bodies, 2 kombi-skorchas, 1 bosspole, Battlewagon w/ deff rolla, big shoota
(These are set up so each Nob is indivudual, so PK+pole, PK+skorcha, Painboy, Waagh! Banner, kombi, normal)
2x 13 Lootas
6 Nobs, 2 PKs, Waagh! Banner, Painboy, cybork bodies, 1 kombi-skorcha, 1 bosspole, Battlewagon w/ deff rolla, big shoota
3x 11 Grots
2x 2 rokkit Buggies
Deff Kopta w/ rokkits, buzzsaw
2x Battlewagon w/ 'ard case, big shoota, deff rolla
3 Kannonz, 3 runts, 4 krew
That's 2000. I've got 2 Wagons full of Nobs with the Warboss in tow as the heavy hitters. They aren't the beefiest out there, but rather than field 1 death star in a relatively flimsy ride I went for 2 smaller units for redundancy. The Warboss usually rides with the Troop mob to give them some extra protection from S8+ and assaults.
The Grots jump in wagons and ride up with the Nobs, using their sturdier armor to protect them and draw fire with the threat their deff rolla present. I was considering giving them kill kannonz, but 120 points is a lot for 2 S7 pies. It would give them a higher profile and could do some damage, but I'd rather have that extra scoring unit and the kannon battery.
For shooting I have 3 static units, 2 Loota mobs and 1 battery of kannonz. 26 dakkaguns and 3 kannonz with runts should be sufficient to ding enemy armor. On top of that I've got 4 buggies with rokkits to provide mobile S8, LoS blocking, buffers, and funsies. The Kopta is for a hopefuly alpha strike, otherwise he'll just zoom around being obnoxious and charging vehicles or crisis teams.
So, compared to my older army I've lost 20 Shootas and 19 Sluggas in exchange for 20 Grots, Nobs, and Kannonz. I think it's a bit better, what say you?