Originally Posted by
501
@jphil: You're better off doing the "goals" the game gives you, since you get a flat cash amount for it which is usually more than what you get for doing the 2 missions themselves, unless its the "boss" unit in the map. In addition, you get cash for clearing the entire map the first and fourth(?) time. When you get to Naval Battle, you can start spamming the Adv Destroyer, $189k - 623k for 370x2 energy.
@JMC: Thx alot for the info, the railgun seems nice, just below the flight hangar (617 vs 608) although it uses ground units too so I'm not sure if the casualties might overlap the extra cash compared to the destroyer (549? I think your calc is off).