The word above is from 2 nukes per pixel, the rest are follow-ups. That was really my 2nd attempt at it, the first fell down because the M was fading away by the time the E finished. (Plus I ran out of silos for the E and my plan to use subs where necessary to fill gaps didn't work - forgot they can't fire on open ground!) So the 2nd time I hit 2 from each silo, and then all the rest just to make 'sure'. Gave it a nice bit of longevity, that did - a full 25 minutes of my name up in lights.
This is the best image of the 1st go: 1 nuke per pixel - (OK it says MIKF, but you can see the 3 nukes to complete the E)
Note the subs in launch mode but unable to launch, and the silos with unused nukes.
If I can be bothered to get the other images hosted you'll see it's a bit more impressive the 2nd time around.