Have you considered a Catachan brigade like this? Between the bikes, the hellhounds and the guardsmen that is a fair amount of board control:
++ Brigade Detachment +12CP (Imperium - Astra Militarum) [69 PL, 1000pts] ++
+ No Force Org Slot +
Regimental Doctrine: Catachan
+ HQ +
Company Commander [2 PL, 31pts]: Boltgun, Chainsword, Grand Strategist, Warlord
Company Commander [2 PL, 31pts]: Boltgun, Chainsword, Kurov's Aquila
Primaris Psyker [2 PL, 46pts]: Force Stave, Nightshroud, Psychic Barrier
+ Troops +
Infantry Squad [3 PL, 40pts]: 9x Guardsman
. Sergeant: Chainsword, Laspistol
Infantry Squad [3 PL, 40pts]: 9x Guardsman
. Sergeant: Chainsword, Laspistol
Infantry Squad [3 PL, 40pts]: 9x Guardsman
. Sergeant: Chainsword, Laspistol
Infantry Squad [3 PL, 40pts]: 9x Guardsman
. Sergeant: Chainsword, Laspistol
Infantry Squad [3 PL, 40pts]: 9x Guardsman
. Sergeant: Chainsword, Laspistol
Infantry Squad [3 PL, 40pts]: 9x Guardsman
. Sergeant: Chainsword, Laspistol
+ Elites +
Commissar [2 PL, 16pts]: Boltgun
Platoon Commander [2 PL, 21pts]: Boltgun, Chainsword
Platoon Commander [2 PL, 21pts]: Boltgun, Chainsword
+ Fast Attack +
Artemia Pattern Hellhound [6 PL, 90pts]
. Artemia Pattern Hellhound: Heavy Flamer
Artemia Pattern Hellhound [6 PL, 90pts]
. Artemia Pattern Hellhound: Heavy Flamer
Artemia Pattern Hellhound [6 PL, 90pts]
. Artemia Pattern Hellhound: Heavy Flamer
+ Heavy Support +
Basilisks [7 PL, 108pts]
. Basilisk: Heavy Bolter
Basilisks [7 PL, 108pts]
. Basilisk: Heavy Bolter
Basilisks [7 PL, 108pts]
. Basilisk: Heavy Bolter
++ Total: [69 PL, 1000pts] ++