I really like this map too. But the only gripe I have with it is the health packs and metal. I think you could add a couple more, especially a large one somewhere near the middle of the tracks. A lot of them are kinda hard to find, and pretty inconvenient for a medic (like the ones going up t o the little tower over looking the track.)
And there just isn't enough metal on map over all as well. Other than that, everything is great!