Scenario: Access west Sloviansk

[Roman]

changes:
- I changed tanks T 80 per T 64 Bulat. The latter have thermal vision.
- The scenario is of advance and delay. Advance government forces and separatist delay.
- Small changes to the map.

Now the scenario is very difficult. I'll try to play my best. I'm thinking of adding a unit ATGM separatists and maybe a box of extra ammunition for machine guns and mortars.
But for now I test it as it is.
I upload the scenario and map files.