@Shahadi: Sorry, i didn't do the map. I think that they're firing arcs of the units/arty that are deployed there (on the right side in blue, it says "firing positions").
There is some new footage of UA (ATO) tank reinforcements that unsuccessfully tried to take over the airport yesterday.
UA T-64s advancing to the airport (they must have been reactivated or fixed very hastily, note the various state and combinations of ERA - some have Kontakt-1, some have Kontakt-5 or their combination):
https://www.youtube.com/watch?v=-PGSL-TPODk#t=13
Some more footage (note BMP-1 with SLAT):
https://www.youtube.com/watch?v=mI9uSvVypLs#t=43