I am a bit of a jackass as you will see (well, "a bit" is an understatement), but I would bet on 1,000 point lists not having enough to deal with
av 14 so with that said:
1. Librarian- 100pts.
2.10 man tactical squad w/flamer- 180pts.
3. 10 man tactical squad w/flamer- 180pts.

4. 5 man sniper scout squad w/
ML and cloaks- 90 pts.

(points were off)
instead:
4. Give both
tac squads Plasma cannons, give a sergeant a combi weapon, and both
LRs storm bolters.
5. Land raider redeemer w/
MM- 250 pts.
6. Land raider redeemer w/
MM- 250pts.
I would give the liby Avenger and Vortex of doom and put him with a 10 man
tac squad. I would give both the ten mad
tac squads a flamer (M.launcher otional), put them in the redeemer and march them up the field.

I would prop the sniper scouts mid field and provide fire support (no pun intended) for the redeemers

(points were off)
as the redeemers flamestorm the hell out of everything or fire their assault cannons having them fire their defensive storm bolters, have the squads disembark in rapid fire distance, use the liby's vortex if I am feeling lucky or the avenger as the flamer
tac marines light guys up, next turn unleash those plasma !
Never tried this, I need to get some flamestorm cannons and assault cannons to convert my goddhammers. I think this would be both incredibly fun and incredibly douchy.
Should do decent against everything incredibly paranoid opponents who could foresee this.
Edit: God help you if you meet a necron player with this list though
Edit 2: Points were off.