Vanilla 0AD?  Better not pull in there unless they have solid plan of formation bonuses.

Oh ok so I think you do need @stevenlau for that.

https://gitea.wildfiregames.com/0ad/0ad/pulls

Yes, if you get Ahisma (all units), you gather berries faster and farm faster, but gather meat slower... whether ur a horse, civilian or soldier.  germs civilians gather meat 100% faster, you can see it in stats.  IT says civilians, there is only one type of civilian unit, dont confuse it with citizen