Playing with some mods that makes the combat more lethal, combined with the fact that I only have 2 endurance, they one-hit me!
Any mods that halve their HP or something?

Normal without any mods has 15 in health and does 7 damage.
And you need it nerfed?

You're getting one-hit by the 2nd weakest enemy, and you think the solution is a mod to nerf the bloatfly? I suggest you reassess your mod selection.

If the bloatfly is one-shotting you you're gonna have a LOT of fun in Quarry Junction.


My suggestion: Look into some weapon/armor mods, or get the GECK out and de-nerf them. It will take you longer to load the mods in the GECK than it will to weaken their 'weapon'. Either that, or rethink your SPECIAL stats. I'm not sure what type of character you're playing but it sounds like it doesn't fit at all with the mod package you're running.