There are preculiar issue. BattleGrid and Cover bouth have same properties - at their base it is Vector3. And they not very userful at this point. For example you cant search for cover and avoid some enemy at same time. Also BattleGrid is not very userful for what it designed to be and after some thoughts i decided to reimplement it and also fix some issues with it's help.
So. I changed how points stored on navmesh. And also added way to add user defined data to navmesh. Which is very userful if you are trying to build any sort of AI that need list of nearby items with aproximated distance.