The two Survival Missions are some seriously good fun. Great missions really enjoyed playing them and a great way to let off steam. Only played through once but found no issues. In Stary Sobor mission your told to defend the castle rather than the town itself. I know its nothing major but proberly should change that :).
The Ambush Convoy Mission was also good fun. I really do like the more tactical and paced approach compared to the 'the convoys here now go before they leave!' ambush missions im used to. It could perhaps be improved with a little more information in the briefing as the time delay between the arrival of the convoy is quite large and threw us off. That could just be that me and my friends are slightly slow tho :p
The transport support in the Destroying Resupply Convoy doesn't work though claims theres 'no support available' which prevented us from playing that mission :(. All-in-all though i really enjoyed your missions well done. Bring us more missions now please :)