Howitzers operate similarly: once in a position for a few moments, it recognizes that it is time to deploy itself and is then ready for action.
In the midst of all of this you may forget the availability of missile silos, but try not to. If you build one and have the appropriate military technology in your Library's archives you can launch missiles, and ICBMs later on if you stick around long enough for your scientists to conceptualize them. If your graphics card can support you, you will see a mushroom cloud which reverberates a shockwave that goes outward. The laptop Reynolds used to show me the game could not, and in its place is a statement on screen which reads: “Boom, followed by a mushroom cloud”. Cunning. Be sure to watch for “invalid targets” if, for example, you use the 'Cheat Menu'. In this case, you will need to move units within 'eyesight' of the object(s) you wish to attack. Speaking of cheating, wherever you put your cursor on the screen is where you will find your “rush job” placed.
THE 'THIS AND THAT'
A brief throwback to city management in Rise of Nations: multiple Libraries equals better research advances at once. Science-wise, a player can research more in one area and less in another area, so one can be at different levels in terms of acquired technology. Therefore, a situation can easily develop where one area of technological advancement, say the military, will not necessarily be 'on par' with another area at the same time, say civics. Also, as if there was any doubt as to whether your city's architecture will modernize as you progress through the ages or not, let it now be alleviated: it will.
As alluded to in Part 2, there are more resource types you can discover and take advantage of. For example, oil only comes into play beginning with the Industrial Age at least. Gameplay-wise, this means that previously explored terrain in a previous age may reveal itself to have been holding a modern times exploitable resource once you have the technical means to extract it from the earth.
In closing, here's a textual map to an Easter egg within this very preview if you have not yet… heard it. Go to the 17m:12s mark on the full audio playback, or 2m:23s in the preview, to hear Reynolds' 6-year-old son Tay give his father some quick in-game military advice.
Rise Up: Reynolds On RoN 
