You mentioned pathfinding, which I think was what I was after.
Sitting in the top/left corner and having my RCC buildt, my micro's kept clinging to the hill sides, taking a few extra seconds to reach the front. Kinda frustrating.
It was more than 1 time I had 4 vecs rolling out to reinforce the frontline, and when they took the long haul, you could easily have overun my forces at the entrance. (Not that you didn't in any case..)
Just strikes me as kind of weird that the Vehicles do that..