OK, i havent been in this thread 4 awhile...sorry :-/...
The Nuke V2 can be found at my website and at halomods, and yes u do have to add it with a program. I gave it a seperate identity, it doesnt replace the rocket launcher now and it has no effect on the explosion of the frag grenade. You add it with either Spark Edit, HCE, or HMT. I didn't do it b-cuz SE doesnt work on my computer and using the other two totally defeats the purpose of giving it it's own identity. This one has the better contrail, weight, slower, etc. as well.