Difference is about 230-240 points, but they've got furious charge, stubborn, 5
ws and 9
ld, providing more stability for stubborn and awesome amount of attacks. And I like miniatures.

But thanks, I will think about swapping them for default termies. Other way is to drop Spartan and termies and take 2 squads of Destroyers with jump packs (Catulans as I see them).
How about that:
1 Praetor (
HQ) Paragon Blade; Bolt Pistol; Paragon Blade is master-crafted; Digital Lasers; Iron Halo; Warlord @ 180 Pts
2 Rapier Battery (Elites) Laser Destroyer @ 110 Pts
10 Destroyers (Elites) Jump Packs, 2 Missile Launchers, Sergeant Lighting Claw, 3 phsophex bombs @ 430 Pts
10 Destroyers (Elites) Jump Packs, 2 Missile Launchers, Sergeant Lighting Claw, 3 phsophex bombs @ 430 Pts
20 Tactical Squad (Troops) Chainswords; Boltguns; Legion Vexilla; Nuncio-vox; Sergeant Power Fist, Artificer Armour @ 335 Pts
10 Tactical Squad (Troops) Chainswords; Boltguns; Legion Vexilla; Nuncio-vox; Sergeant Power Fist, Artificer Armour @ 215 Pts
7 Tactical Support Squad (Troops) Volkite Calivers; Sergeant Power Axe, Augury Scanner, Artificer Armour @ 185 Pts
1 Spartan Assault Tank (Heavy Support) Twin Heavy Bolter; Laser Destroyers (x2); Flare Shield; Frag Assault Launchers @ 330 Pts
1 Land Raider Proteus (Heavy Support) Exlorator Augury Web @ 250 Pts