How about energy management?

That's a known inequality that favors BHs and it exists for all Troopers and BHs (which is why I have to wonder why they opted to make Heat a base 100 Resource with portions of 8 as total cost and Ammo as 12 with portions of 1 as total cost when it's pretty apparent that you would have rounding errors no matter how it was done), but it's largely beside the point.

The OP was trying to say that the difference in the weapons was somehow a point of inequality between them; it's not, since the damage variation is miniscule and the average damage is the same. The variation is tiny and just as likely to favor one as the other.