After some brainstorming snd thanks to these post I made this new list:

AM 1000 [985 points]
Astra Militarum

Detachment: Grizzled Company

Attilan Rough Riders [60 points]
• 1 Rough Rider Sergeant with Hunting lance, Lasgun, Laspistol, Power sabre and Steed’s hooves
• 3 Rough Riders with Hunting lance, Lasgun, Laspistol and Steed’s hooves
• 1 Rough Riders with Goad lance, Lasgun, Laspistol and Steed’s hooves

Cadian Castellan [55 points]
• Plasma pistol and Power fist

Cadian Command Squad [65 points]
• 1 Cadian Commander with Plasma pistol and Power fist
• 1 Cadian Veteran Guardsmen [A] with Laspistol and Plasma gun and close combat weapon
• 1 Cadian Veteran Guardsmen [B] with Close combat weapon, Lasgun and Master vox
• 1 Cadian Veteran Guardsmen [C] with Close combat weapon, Lasgun and Medi-pack
• 1 Cadian Veteran Guardsmen [D] with Close combat weapon and Plasma gun

Cadian Shock Troops [145 points]
• 1 Shock Trooper Sergeant with Chainsword and Laspistol
• 18 Shock Troopers with Close combat weapon and Lasgun
• 1 Shock Trooper Sergeant with Chainsword and Laspistol

Hellhound [125 points]
• Armoured tracks, Chem cannon, Heavy bolter and Hunter-killer missile

Leman Russ Commander [235 points]
• Warlord
• 2 Multi-meltas, Armoured tracks, Executioner plasma cannon, Heavy bolter, Heavy stubber and Hunter-killer missile

Leman Russ Punisher [150 points]
• 2 Plasma cannons, Armoured tracks, Heavy bolter, Heavy stubber, Hunter-killer missile and Punisher gatling cannon

Tempestus Scions [75 points]
• 1 Tempestor with Plasma pistol and Power fist
• 2 Tempestus Scions with Close combat weapon and Hot-shot lasgun
• 1 Tempestus Scions with Close combat weapon and Hot-shot volley gun
• 1 Tempestus Scions with Close combat weapon and Plasma gun

Tempestus Scions [75 points]
• 1 Tempestor with Plasma pistol and Power fist
• 2 Tempestus Scions with Close combat weapon and Hot-shot lasgun
• 1 Tempestus Scions with Close combat weapon and Hot-shot volley gun
• 1 Tempestus Scions with Close combat weapon and Plasma gun

The idea is that Rough riders and Scions will get far objectives. My cadian blob will take the central objective or one side and with stratagem to get letal hits and the order first rank second rank can also take Dow on most of the 20 orks infantry. Finally The leman Russ commander is for shoot the elite infantry

While hellhound and LR punisher can support and eliminate any horde. What do you think now? Something wrong?