The Horse doesen't belong to the nomad game style.
Nomad style is no fixed TC spot and no Scout start.
Every information has a cost on nomad. Villager walking around (idle), sheep scout (can lose sheep/food) or O.P. (cost resc.).
Here are two options how to fix Huns on Nomad
1. Huns Nomad TC cost 200w (or 225w)
2. Huns start with -50w (-100w now)
Option one buff Huns only on Nomad, give them the ability to build also a dock.
TC (200w) + dock and 25w start (50w other civs). If that is to strong it can be a 225w TC + dock and 0 wood start, same as chinese but they have +3 vils.
Option two would buff them also on other maps where they start with the TC.
What do you guys think about that?