There was B61 in the F15E pack a while ago, but even if I dropped it a 1km up at full speed, then pulled up to about 4km before it went off, I'd still get killed. Strangely, it never killed soldiers or damaged buildings and didn't even explode, but it was still a massive CPU hog, slowing my P4 1.8ghz right down
The CoC torpedo pack has a really good low-yield nuclear torpedo that's got a kill range of about 800m, and looks brilliant, but it's useless unless you're using it at sea, since it blows up if it hits land.