1250 BA for local Tournament

[Gir]

So I've got a 6th ed tournament in a couple of weeks, and I'm trying to come with a good 1250pt BA list.

Now that 6th ed has completely shaken up BA, and 1250pt isn't a strong suit for then anyway, I wanted to get some advice on my first draft list:

HQ:

Tycho

Elites:
Corbulo
8 Sterngaurd vets
- Plasma Gun
- Powerfist
-Drop Pod

Troops:
10 Tactical marines
-Missile Launcher
-Flamer
10 Tactical marines
-Missile Launcher
-Flamer
10 Assault Marines
-Flamer
-Powerfist + Stormshield on Seargent

Heavy Support
5 Devastators
-4 Plasma Cannons

1250pts dead.

The plan is drop sterngaurd, Tycho and corbulo into the enemy deployment zone to give them a very real threat to deal with, keeping corbulo at the front so he can suck up damage with his 2+ FNP

Tactical marines sit back holding objectives, splitting into combat squads if required. Flamers help protect against charges

Devastors take care of any armour or heavy infantry

Assault marines jump around looking for characters to challenge with the Seargant.

Any suggestions where I could improve? will be fighting Nids, Imp gaurd, Grey Knights, Dark Eldar, Blood Angels, Tau and Necrons.

[woodenronin]

Seems like a strong list. No melta type weapons? I suggest one multi melta in your devistators. If you have it.