This mod changes the Nuka Quantum Grenade by (i) increasing its area of damage so it's actually effective in combat and (ii) making its explosion bigger but still based on the cool blue vanilla model.

Why I Made This

I was surprised that the Nuka Quantum Grenade seemed so ineffective, despite its damage being 2nd only to the Nuka Grenade, and had such a ridiculously tiny explosion. When I looked in FO4Edit, the reasons became obvious.

Explosion Data determines a grenade's area of effect - Inner Radius is the area in which (along with certain effects) full damage is applied and Outer Radius is the area in which NPCs take at least some damage (but see note at end). 

Most grenades including the Frag, Molotov, Plasma, Cryo and Baseball, have an Inner Radius of 150 and an Outer Radius of 500.  The powerhouse Nuka Grenade has an Inner Radius of 300 and an Outer Radius of 700.  The Nuka Quantum Grenade lags far behind with an Inner Radius of 50 and an Outer Radius of 200.  That's 1/3 the Inner Radius of a frag grenade, 1/6 compared to the Nuka Grenade, and its Outer Radius isn't much better - no wonder it's so disappointing.

I call it a "fix" because those settings are so low that I'm guessing it was a development mistake. Other than that, I really like the grenade (I love the blue mushroom explosion), but I couldn't find a mod that changed only the radius settings and didn't also change damage, explosion type, etc.  So I made this for myself, using FO4Edit and the Creation Kit, and thought I'd share.

What I Did

I increased Inner Radius to 300 and Outer Radius to 800 so, although it remains the 2nd most powerful grenade, it now has the widest area of effect (well, slightly: same Inner Radius, but14% larger Outer Radius, compared to the Nuka Grenade).  I also changed the Image Space Radius, but that change shouldn't be very noticeable if at all (see note at end).  I left everything else at the vanilla settings.

The result is that the Nuka Quantum Grenade is now much more effective in combat, but not overpowered, and the explosion is much larger but not overdone. 

Alternate File With Added Knockdown Effect

Same radius fix and also knocks down NPCs within range.

Install

Download 1 of the 2 files via NMM or other mod manager and activate.  Or download manually, unpack, and place the .esp in your data folder. 

Compatibility

This mod will conflict with others that modify the Explosion Data of the Nuka Quantum Grenade. It should work fine with sorting mods like VIS.  (I use VIS myself.)

Required Files

Nuka World DLC

A Quick Word on IS Radius

Image Space Radius is the area in which Image Space Modifiers are applied, and my understanding is those pertain to special effects. Adjusting that value didn't seem to make any difference in a bunch of in-game tests, so I increased it just to keep it in line with the other changes I made and how other grenades handle that setting.  But, yeah, I doubt it does anything noticeable (but it definitely doesn't hurt anything either).

A Quick Word on Inner/Outer Radius

I spent a lot of time researching and I'm almost, but honestly not 100%, certain that the Inner/Outer radii work as I described above (i.e. Inner Radius = full damage and Outer Radius = some damage). I found some indication that Inner Radius might pertain only to certain technical effects, and only Outer Radius pertains to damage - see the Creation Kit Wiki if you want more detailed info. Practically, though, it doesn't matter: the grenade used to cause damage within only a very small radius, and now causes damage within an area far more fitting for the game's 2nd most powerful grenade.