Kinda interesting that The Forgotten Expansion pulled from AoM and AoE3 in adding some new econ upgrades.

i.e.

Hunting Dogs was a dark age tech for a while, and Gill nets is an AoE3 tech. (and AoM had some fishing upgrades as well.

Cutting hunting dogs is for the best, given how weird it was, but I really like gillnets as a way to add an upgrade to fish trapping.