Minotaurs 1850 tourney list

This is a list I would like to try in a tournament setting at 1850points, it seems like a lot of tourneys are at this point level.

HQ -

Librarian w/null zone and smite
100

Elites -

Dreadnought with 2 twinlinked autocannons
125

Dreadnought with 2 twinlinked autocannons
125

5 Sternguard with 5 combi-plasmas
in Rhino
185

Troops -

9 marines with Missile launcher and meltagun
1 sarge with combi-melta
in rhino
220

9 marines with Missile launcher and meltagun
1 sarge with combi-melta
in rhino
220

9 marines with Missile launcher and meltagun
1 sarge with combi-melta
in rhino
220

9 marines with Missile launcher and meltagun
1 sarge with combi-melta
in rhino
220

Fast Attack -

Landspeeder with Typhoon Missile Launcher
90

Landspeeder with Typhoon Missile Launcher
90

Heavy Support -

Predator with autocannon and 2 heavy bolters
85

Predator with autocannon and 2 heavy bolters
85

Predator with autocannon and 2 heavy bolters
85

so we got

8 missile launcher shots
4 twin linked autocannons
3 autocannons
8 heavy bolters
5 plasmaguns
8 meltagun shots

12 vehicles

46 infantry
8 scoring units

22 KPs

TACTICS

Combat squad the marines, put 5 man squads with missile launcher in deployment zone in cover if possible.

Librarian goes with sternguard.

Five rhinos move up the field and pop smoke in the middle.

Everything shoots at transports turn one. Meltas hit heavy transports turn 2. Sternguard and Libby take care of heavily armored infantry.