I'm thinking of going a Catachan force of grizzled vets (now contracted with a Rogue Trader).
My standby/main line unit is Vets w/ 3xPlasma, Forward Sentries, Krak Grenades.
This unit weighs in at 125 which, given how fragile they are, has me a bit worried whether I should shave points. I could drop the Krak, but then they don't have any recourse to assault vehicles, which I've found is the best way to kill vehicles this edition. Then again, even though I plan to move them around, I'm not 100% they'll ever live long enough to assault a vehicle often.
I've also got enough points left over to buy them the occasional Heavy Bolter or Mortar, but, again, that strikes me as spending too much on 10 GEQ wounds, Stealth or no Stealth.
The problem comes down to this:
1) I want a list without many tanks, since they're supposed to be used to working in dense terrain. I've filled by Fast Attack with Sentinels, Valkyries, and (probably) a Vulture. None of the Heavy Support options fit the theme, so heavy lifting needs to be done by infantry.
2) The problem with Vets only as infantry is you can only take 6 squads (which I have--two squads riding in Valks), but I find myself with a dearth of long-range firepower. Most guns operate in the 24" or less area, Sentinels excepted. I'm thinking I should toss some heavy weapons in the troops department, but that means investing even more points in units that strike me as easily wiped out. Troubling.
Perhaps I should drop a pair of vet squads and insert a platoon with some heavy firepower? Not sure. Anyway, here's the preliminary 1500-point list:
HQ
Company Command Squad w/Master of Ordnance, Medic
Primaris Psyker, Lv 2
Troops
Vets w/ 3x Plasma, Forward Sentries, Krak
Vets w/ 3x Plasma, Forward Sentries, Krak
Vets w/ 3x Plasma, Forward Sentries, Krak
Vets w/ 3x Plasma, Forward Sentries, Krak
Vets w/2x Melta, 1x Hvy Flamer, Grenadiers
Vets w/2x Melta, 1x Hvy Flamer, Grenadiers
Fast Attack
3x Armored Sentinels w/Lascannons
2 x Valkyries w/Multiple Rocket Pods, Lascannons
1 x Vulture w/TL Autocannon, HK Missiles
Leaves me about 15 points to burn. I *could* shift two plasma vets to GL/AC vets which could free up about 60 points (I think), but that puts me back into investing in troops or (maybe) buying some Ratlings or something (which would be fluffy, true, but I'm not sure how useful).