good concept, theme could use a bit more reinforcement. I get what you were going for from another comment but almost missed it when reading through it the first time. 

one note would be to have more restrictions or clearer directions on objective placement for fair placement. spirit of the rules would have me place objectives fairly but you could give one side massive advantage with some unfair placement (intentional or unintentional).

I really like the idea of the line between objectives having an effect on gameplay. Immediately visually obvious and a solid incentive to inform objective choice and unit movement. Sounds like elegant rules writing.

Is that screenshot from Supreme Commander?