I find the fusion core game mechanic, simply too silly/gamey. From a lore perspective, it's a bit at odds with the utility it's suppose to have imo, as well as a bit underwhelming for something built off of nuclear energy (which I'd argue, should be in terms of at least months of use if not years).

I don't mind dealing with the ablative layer mechanic and upkeep, but the matter of the fusion core, and it's longevity is pretty ridiculous.

I'm curious to see if other power armour variants may offer more effeciency, but still, I wish the time on the FC lasted way longer, if not indefenitely.

One idea to offer balance/choice, would be to make gradations of cores that would offer different power output to parts of the Armour - like more str but less movement speed; no armour but gain fantastic acrobatic options; or enables powering jets but not a power field.. etc.

If there are any modders out there (when the creation set is released), I hope you consider this idea. I may just crack my knuckles at it.