This update improves visibility of 2 things in the game:

1) You now get an intel briefing on the next wave and markers on the map that show where they might attack from. The briefing contains info about the expected enemy unit types (infantry, APCs, Tanks, etc) and the mini map shows indicators for the enemy attack vectors so you can prepare a better defense. 

2) Units are now highlighted with a target tracker, making it easier to spot your and enemy units, greatly helping visibility of the battle space.