Check the main rules FAQ. Page 7, first column. Then give your Commissar a Camo Cloak. I also don't like seeing Independent Characters without Power Weapons.
Drop your Vox Casters on all units. You have nobody giving Orders anymore. lol.
I'm not a fan of doctrines, as far as I'm concerned, you've got 90 points there that could be spent on a whole 'nother squad. But, that being said, '1780' is a weird point break and you should probably trim at least 30 points off of it anyway.
Keeping stuff alive is less important than simply having more of it. You're playing Guard totally wrong.but i could still use them to repair "weapon destroyed" results on my Russes and Hydras...
A pair of Tech Priests is 90 points. You could have more Veterans. Or find a few more points for Gunships, etc.
Leman Russes + Gunships is incredibly good. Just keep piling on Russes and Gunships 'til you have 9 of each and you wont be far off. As I've said, Demolishers and Battle Tanks are the best ones, maybe one or two Executioners, but they shouldn't be your go-to Tanks.my next step up for this list is adding another battle tank, another destroyer, and another Valkyrie with troops inside it, however i would like to play-test at around 1800pt (which is where this list currently is), to see if i like what i've got.