Thanks for your feedback, for the top base you can use the two mass drivers to shoot tanks across if you wanted to or use mechs as they can cross arkycite without exploding if they are quick enough.

The top part was a pain. You realize that Eludes can only deal 1 damage (or 2, since they shoot two shots at a time) to the tungsten walls, right? Those tiny holes where the Breaches are exposed are very difficult to aim through. I just ended up besieging it by building a Breach just outside their topmost Breach's range and surrounded it with Eludes to swat away enemy Eludes. Add some hydrogen to the only two Beryllium bores in that area, and it's enough ammo to continuously fire. I then manually shot at the walls covering the top area of the enemy Breach (and destroyed the enemy Breach for good measure) and rushed a bunch of eludes through the hole to take out the last base. Far more of an annoyance than it needed to be.

I'm also not sure what the point of the two payload launchers was. It's not like you can really use them for anything, nor would you need to.