I made some slight changes and this is what the list looks like now:
HQ:
CCS 95pts
Camo Cloaks
Lascannon
Sniper Rifle (Not really useful, I know, but I had 5pts to spare and couldn’t find a better place for them really. And it's cool

)
TROOPS:
INFANTRY PLATOON 1:
PCS 50pts
Flamer x4
Infantry Squad x3 (Blob 1) 230pts
GL x3
Power Weapon x2
Commissar w. Power Weapon
INFANTRY PLATOON 2:
PCS 50pts
Melta Gun x2
Infantry Squad x2 (Blob 2) 175pts
Lascannon x2
Commissar
FAST ATTACK:
Scout Sentinel 40pts
Autocannon
Scout Sentinel 40pts
Autocannon
HEAVY SUPPORT:
Leman Russ Demolisher 165pts
Medusa 155pts
Enclosed crew compartment
Bastion breacher shells
I could remove the Sniper rifle and give the melta-
pcs melta bombs aswell but I'm not sure if it would be used at all or if they would just die before they have time to use it. I'm also not a big fan of vox's, with
ld 9 from the commissar they have 3/4 chance to succeed with the order and the vox's increase it with 3/16. I would rather use those points somewhere else for like a melta gun or something, especially as I'm already short of points and can't get everything I want. The medusa and the Demolisher is mostly there to have some medium to long range S10 AP1/2. My main concern though is that they will just die instantly as i don't have that much armor in the list.