Hi all, after getting some feedback from folks about Assault Cannons, I've put together two lists of shooty marines. The criteria I had for building the list are 1) it has to be playable at the 500, 1000 and 1500 points level 2) Lots of shooting and 3) Forigiving of mistakes. As a newbie, I'm going to be making a lot of them. The first list seems more balanced, the second list lacks any type of counter-assault besides the Chapter Master.

HQ
Chapter Master
Jump Pack
Plasma Pistol
Power Weapon
120 Pts.

Librarian
Epistolary
Storm Bolter
Fury of the Ancients
Fear of the Darkness
Terminator Armor

Librarian Squad
Terminators x4
Assault Cannon x2
Chain Fist

364 Pts.

Troops
Tac Squad x 5
5 Marines
Lascannon
Plasma Gun

500 Pts.

Fast Attack
Land Speeder Tornado x2
160 Pts.

Assualt Squad
5 Marines
Terminator Honors
Power Fist
Flamers x2
152 Pts.

Heavy Support
Predator Destructor
Heavy Bolter
Heavy Bolter
Extra Armor
Smoke
118 Pts.

Whirlwhind x2
170 Pts.

1499 Pts., 41 Models

List 2:

Master
Jump Pack
Dual Lightning Claws
125 Pts.

Librarian
Epistolary
Storm Bolter
Fury of the Ancients
Fear of the Darkness
Terminator Armor

Librarian Squad
Terminators x4
Assault Cannon x2
Chain Fist
364 Pts.

Troops
Tac Squad x 6
6 Marines
Lascannon
Plasma Gun
690 Pts.

Fast Attack
Land Speeder Tornado x3
240 Pts.

Heavy Support
Whirlwhind x2
170 Pts.

1504 Pts., 47 Models