Balanced Units - A minimal balance mod for units

IMHO

If the goal is to make alternative upgrades competitive with each other,
then it's pointless to base decisions on nerfs.
Why?

Players prefer one upgrade over another because it provides greater benefits. Trying to make an underperforming upgrade more viable by nerfing the superior upgrade is like nerfing an entire faction.

Therefore, only buffs for alternative upgrades. No nerfs.