Here we go...
Command company Squad, Straken, Medi pack, Carapace Armor, Melta gun, Regimental Standard, Body Guard x2
Drop Carapace and Standard, get 3 more Meltaguns. Medic is fine with Straken, although he feels pretty extraneous in this list.
Guardsmen Marbo
Drop Rambo, and give more Meltas to your Veteran squads.
Vendetta x2, heavy bolter sponsons.
Vendetta x2, heavy bolter sponsons.
Bane Wolf x2.
Looks fine. I'm not a fan of Bane Wolves or squadrons, but this is definitely workable.
Medusa x2, enclosed crew
Leman Russ Battle Tank x2
Knight Commander Pask, Leman Russ Executioner, Plasma Sponsons.
Drop the Enclosed Crew Compartments on the Medusas, and give them Bastion Breachers. Drop Pask from the Executioner, and replace the
LRBTs with 2 Hydras. With the extra points, you may be able to squeeze in another Vet squad or something.
Hopefully this helps.