Thanks for giving it a look-over, Joel.
1. The Oddboys in the Warbands.
They're a bit easy to limit via suppression, I agree. The idea was to create a "too many targets" problem for opponents - they need to put at least one BM on four formations to drop the range on all the TK weapons, so some of them should be able to get some full-range shots out there. They've also got the mobility to compensate for it to some extent.
If I spent the points on something else, it makes the Blitz Brigades an easy choice of target for suppressing fire, and I was a bit reluctant to have only two TK weapons (very vulnerable ones at that) in the list when facing Titans. Since Orks are basically forced to double (otherwise they fail their command rolls every goddamn time
in my experience) it still gives the Supa-Zzaps an effective 90cm range under suppression. Against most lists, the mechanised Warbands will be trying to engage rather than shoot, but I felt I couldn't run the risk of being unable to scratch war engines with reinforced armour in lists that rely heavily on them.
The second Gunwagon in each unit is a good idea but I can't think what I'd cut to make them fit! (I'd also have to raise the cost of the BTS formation.)
2. The Oddboys in your Big Warband BTS
Yeah, I've been wondering about them. I'd basically hoped that they would sit near centre-field and project a 60cm bombardment threat on overwatch, forcing opponents to play around them to some extent so my other Warbands could get into position. I didn't mind spending the points at the time because I was just trying to make a unit that cost more than the others, but you're making me question whether 150 points is worth spending just to give an opponent some slightly tougher choices in the first turn.
This is also a formation I haven't tried on the table - in the list I used last game the BTS was a big Blitz Brigade, which I decided was too vulnerable to breaking (since it had no Nobz). I wanted to try out something I could garrison and overwatch with, but I'm not particularly attached to this setup... it's just a struggle to find any formation that's equally resilient while still projecting any kind of credible threat for 450-500 points. (I think it would be fun to run a 'uge Kult of Speed instead, but I don't have the models for it at this stage.)
3. Where is your Warlord?
He's in the first mechanised Warband. I had basically the same thought process.
I've played one game with a similar list (big Blitz as the BTS, no KoS, extra Fight-Bomma) against Colm and it worked pretty well! I did have some lucky rolls - my Warlord's formation got assaulted by teleporting Terminators (with Devastators and a Thunderhawk standing by to provide supporting fire) and managed to wipe them out and win the combat. They still broke, ran and died, but Colm had to throw another two or three units into the jaws of death to finish them off. The Blitz Brigades provided a nice distraction - they're incredibly easy to break, but it forces the opponent to put fire into them that would otherwise be killing off the main hitters. The Landa units were just great, providing both a serious threat that forced Colm to maneuver more defensively, and the ability to smash units that venture out on their own to grab objectives.
Thanks for the feedback - you've given me plenty to think about!