Soviet Mission "Until the Last Bullet" nearly unbeatable with Realism settings on any difficulty.

[The Snooty Redcoat]

Enemy artillery is incredibly devastating in this mission and always seems to gib half my crews before the infantry and armoured vehicles even appear. Gets even worse when the field artillery shows up and you've got barely enough guys to man defences, nvm trying to sneak around and kill their field arty. I'm not new to Men of War (finished all the earlier MoW games, and the missions in this campaign without much difficulty at all on Normal) and am putting a lot of thought into how and where my units are placed (Camo, vs fortifcations, spacing, etc..) but nothing seems to help keep my boys alive. Anyone been able to finish this mission with Realism on? If so I could use whatever tips and tricks you got.