Theoretical: this list will win

Captain Titus100 pts
Attached to Wardens of Ultramar
Marneus Calgar in Armour of Antilochus155 pts
Attached to Terminator Assault Squad
Uriel Ventris105 pts
Attached to Assault Intercessor Squad B
Wardens of Ultramar · 6 models120 pts
Led by Captain Titus

Captain A100 pts
Attached to Assault Intercessor Squad A
Enhancement: Seals of Reconquest 20 pts
Captain B80 pts
Attached to Assault Intercessor Squad C
Captain in Gravis Armour95 pts
Attached to Aggressor Squad
Enhancement: Scroll of Proclamation 15 pts
Lieutenant45 pts
Attached to Assault Intercessor Squad B

Assault Intercessor Squad A · 5 models75 pts
Led by Captain A
Assault Intercessor Squad B · 5 models75 pts
Led by Uriel Ventris and supported by Lieutenant
Assault Intercessor Squad C · 5 models75 pts
Led by Captain B

Aggressor Squad · 6 models165 pts
Led by Captain in Gravis Armour
Scout Squad · 5 models65 pts
Terminator Assault Squad · 5 models155 pts
Led by Marneus Calgar in Armour of Antilochus