EDIT 5: Here is a new version of the list. I dropped the melta bombs on the Captain. I dropped the preds, vindicator, and rifleman dreads. Put in an attack bike squad with 3 bikes with HBs, another Plasmagun bike squad, and a librarian with a bike and force sword. With this latest version, everything moves fast.

HQ
Captain 175
Bike
Relic Blade
Combi-Plasma

Librarian 135
Force Sword
Bike

Troop
Bike Squad 225
5 bikes
2 Meltaguns
Attack Bike w/ MM
Combi-Melta
Melta bombs

Bike Squad 225
5 bikes
2 Meltaguns
Attack Bike w/ MM
Combi-Melta
Melta bombs

Bike Squad 220
5 Bikes
2 Plasmaguns
Attack Bike w/ HB
Combi-Plasma

Bike Squad 220
5 Bikes
2 Plasmaguns
Attack Bike w/ HB
Combi-Plasma

Bike Squad 220
5 Bikes
2 Plasmaguns
Attack Bike w/ HB
Combi-Plasma

Fast Attack
Stormtalon 155
TML

Stormtalon 155
TML

Attack Bike Squad 120
3 Bikes

EDIT 4: Changed the wording on the list to make things clearer.

EDIT 3: Reduced the size of the bike squads so as to add one more giving me more special weapons. I have 2 bike squads focused on anti-tank/anti-MC and two squads focused on anti-infantry. Dumped the power weapons for combi weapons on the Sergeants to make them to help the focus of their respective squads: combi-plasma for anti-infantry, combi-melta for anti-tank/anti-MC. Gave the anti-tank/anti-MC squads melta bombs. Gave the Captain a Combi-melta since the bolt pistol won't give him a bonus attack since the relic blade is two-handed plus the melta is for anti-tank/anti-MC. Gave the captain hellfire rounds to make ranged wounding easier. Upgraded the dozer blade on the Vindicator to a siege shield and gave the dakka pred a dozer blade.

I'm wondering if I should drop one of the upgrades from the captain to free up 10 points to give the plasma squad sergeants melta-bombs as a just in case type of thing. Maybe drop the hellfire rounds to free up 10 points (5 points each for melta bombs to the plasma squads). Or maybe drop the combi-melta on the captain and the dozer blade on the dakka pred to free up 15 points (5 points each for melta bombs to the plasma squads and the captain since he loses the melta shot).
I'm also toying around with the idea of dumping the Vindicator to make room for a squad of 3 Attack Bikes with HBs. They'd move faster than the Vindicator and still provide anti-infantry which is what I intended for the Vindicator's pie plate.

HQ
Space Marine Captain 185
Relic Blade
Space Marine Bike
Combi-melta
Hellfire Rounds

Elite
Dreadnought 125
Autocannon
Autocannon

Dreadnought 125
Autocannon
Autocannon

Troop
Space Marine Bike Squad 225
5 Bikes
Meltagun x2
Attack Bike
Multi-melta
Combi-melta
Melta bombs

Space Marine Bike Squad 225
5 bikes
Meltagun x2
Attack Bike
Multi-melta
Combi-melta
Melta bombs

Space Marine Bike Squad 220
5 bikes
Plasma gun x2
Attack Bike
Combi-plasma

Space Marine Bike Squad 220
5 bikes
Plasma gun x2
Attack Bike
Combi-plasma

Fast Attack
Storm Talon 155
Typhoon Missile Launcher

Storm Talon 155
Typhoon Missile Launcher

Heavy Support 125
Vindicator
Siege Shield

Predator 90
Heavy Bolter Sponsons
Dozer Blade

EDIT 2: Gave 2 of the bike squads plasma guns instead of Melta guns. Replaced the seige shield on the Vindicator with a dozer blade to allow the adjustment.
HQ

EDIT: Heres the latest iteration of the list. I dropped a Vindicator, gave the remaining one a seige shield instead of a dozer blade, switched out the Power Fists on the Sergeants with Power Weapons, and switched out the Land Speeders for Stormtalon Gunships. I have 15 points left over.

HQ
Captain 165pts
-Relic Blade
-Space Marine Bike

Elite
Dreadnought 125
-2x Twin Linked Auto Cannon

Dreadnought 125
-2x Twin Linked Auto Cannon

Troops
Space Marine Bike Squad 310Pts
-2x Plasma Gun
-Power Weapon
-Attack Bike
-Multi-Melta

Space Marine Bike Squad 310Pts
-2x Plasma Gun
-Power Weapon
-Attack Bike
-Multi-Melta

Space Marine Bike Squad 300Pts
-2x Melta Gun
-Power Weapon
-Attack Bike
-Multi-Melta

Fast
Stormtalon Gunship 155pts
-Twin Linked Typhoon Missile Launcher

Stormtalon Gunship 155pts
-Twin Linked Typhoon Missile Launcher

Heavy
Vindicator 120pts
-Dozer Blade

Predator 85pts
-Autocannon
-Heavy Bolter Sponsons

Here is a list I made during 5th edition that I never got around to fully constructing. Will it sit well in 6th? Is it even valid? I have yet to crack open my 6th ed books. (The pred I might switch for Scouts with sniper rifles and ML.)



HQ
Space Marine Captain 165
-Bike
-Relic Blade


Troop
Space Marine Bike Squad 310
-2x Meltagun
-Attack Bike W/ MM
-Sgt. w/ PF

Space Marine Bike Squad 310
-2x Meltagun
-Attack Bike W/ MM
-Sgt. w/ PF

Space Marine Bike Squad 310
-2x Meltagun
-Attack Bike W/ MM
-Sgt. w/ PF

Fast Attack
Land Speeder Squadron 90
-Heavy Bolter
-Typhoon ML

Land Speeder Squadron 90
-Heavy Bolter
-Typhoon ML

Heavy Support
Vindicator 120
-Dozer Blade

Vindicator 120
-Dozer Blade

Predator 85
-Autocannon
-Heavy Bolter sponsons

Elite
Dreadnought 125
-Twin Linked Autocannon x2

Dreadnought 125
-Twin Linked Autocannon x2