Eternal (and possibly 2016) BFG, how does it work?

[hfc2x]

I've been trying to find out how does the BFG actually work in this game, but I haven't been able to find anything regarding the technicalities of it. Most people simply discuss what you can directly see (it shoots "tendrils" while passing near enemies), but there's barely any information regarding things like how much damage do the tendrils cause per tic? frame? Things like that.

 

There's also the issue of the number that appears in the crosshair when the BFG ball explodes. Does that count the enemies the tendrils hit while it was flying? Does that count the enemies caught in the blast radius of the explosion? What about tracers? Do the tendrils "tag" enemies that will be hit by tracers (if any) when the ball detonates? Or does it hit enemies in your visual field? How much damage does the explosion cause? How much damage do the tracers do, if they even exist? (they probably do).

 

It's funny that I've managed to find more misinformation about the inner workings of the BFG in Doom 64 or Quake 2 than any technical information on the BFG in the modern Doom games while searching for this.