Grand Tournament Heat 2 - List thoughts

So first up, some time to consider what I should be using for this weekend, I already have a balanced list without Guilliman that shouldnt be too much of an ass to play against, but doesnt really make it easy to get top 40. 

So as time draws near its time to look at what else I can do!

Three Detachments

Keyword Ultramarines

Super Heavy Auxilary

Roboute Guilliman (Warlord)

Super Heavy Auxilary

Spartan Assault Tank, Quad Lascannon x 2, Twin Heavy Bolter

Librarian, Forcesword, Stormbolter
Devastator Squad (5) - 4 Rocket Launchers
Devastator Squad (5) - 4 Rocket Launchers
Hellblasters (5) - 5 Plasma Incinerators
Intercessor Squad (5) - 5 Bolt Rifles
Scouts (5) - 5 Sniper Rifles, 5 Camo Cloaks
Repulsor, Heavy Onslaught Cannon, Onslaught Cannon, Ironhail Heavy Stubber, Twin Heavy Bolter, Storm Bolter x 3, Krakstorm Launcher x 2, Fragstorm Launcher x 2

Total Points: 1998

Total Models: 29
Total Wounds: 84
Command Points: 7

This plays to Guilliman's strengths giving him a lot of units he can buff if I decide to stay static, and a number of units on the move as well. 

29 models, and no big 10 man squads makes me feel uncomfortable but I know that this is working towards that min max approach.