Since we are all making giant ass loving weapons of imminent destruction, I thought I might join in.

I call it the Black Sharck (misspelling intended). Fires a large missile that creates a gravity well at its explosion point (that can also be time detonated i.e. to explode at the center of something), then after 3 seconds it detonates with immense force (that equivalent to the mini-nuke)
Essentially the most over powered loving weapon ever.