HQ
1x Master Captain Sicarius (Lightning Claws, Artificier Armour, joined to squad Artox) = 125pts
In 1K battles your not going to meet all that many units that can take this guy out too easily though if he is going to be attached to an objective taking squad I do concur that you need to replace the artificer armour with an iron halo for those ranged and close combat inv. saves. (combat shield is no use if hes being filled with lascannon shots)
Elite
5x Assault Terminator Squad Troika = 200pts
This is fine as it is but I do suggest you find some way to add 1 more, maybe take away 2 of the firesupport marines (they seem like they're only going to be ablative armour anyway). Im not a fan of terminators in forces under 3k but what ever keeps you happy...
Troops
8x Space Marine Squad Artox (1x Heavy Bolter, 1x Melta Gun, Rhino, Vet. Sgt with Power Fist, Rhino) = 215pts
Reading your explanation for the heavy bolter I actually agree with you- the marine isn't going to be worse than any other in cc and even if he only gets to fire on 2 turns hes more than likely going to earn his pts back.
10x Space Marine Squad Kharne (1x Missile Launcher, 1x Plasma Gun) = 170pts
Nice but like I said above, if you want to get some spare pts take 2 marines from this squad
5x Scout Squad Scaro (Armed with BP & CCW) = 65pts
Try to add at least another scout and possibly a vet. sgt with a teleport homer so your termies (if they deepstrike) can be pinpoint accurate.
Fast Attack
10x Assault Marine Squad Beltharius (1x Plasma Pistol) = 225pts
Now I've had mixed results with Assault Marines, but I suggest you ignore everyone who is saying this squad should be dropped or cut to 6 men (8 at very most if you are gonna start cutting), because not only are they marines with an extra attack (2 ccws) but there speed can also help you to claim objectives late in the game- something thats not going to happen if you've cut them down so far they're a easy victory pt pile for an opponent
Total
1000pts - 40 models
Right if I had to I'd drop the terminators and bulk out the rest of the squads with extra lovelies (vet. sgts w/power fists etc) but I know how devastating Assault Terminators can be on the charge and in a 1K battle I can imagine them rolling up an enemies battle line quite easily, so except for my proposed changes I dont see much wrong with this list...just never play me or I'll cry
