Nuke ammo string

So I've been trying to mess about with the factory built ammo system for the anti-nuke launcher and the nuke launcher. I have searched High and low, but I cannot find the location of the string description for either of these weapons. I've tried adding it into the ammo .json, but it doesn't take. Any suggestions.

This has been in live_game.js for ages:

I made a t1 nuke launcher, a weaker nuke with no aoe but cheaper and more buildable at once.

Even I didn't notice this lol.

Aha!

I expect great things form this.