some questions appear during a game:

Hydra moving through wood (dif. terrain):
Do the hydra can march through difficlut terrain (like human size). Rules say only "human" sice models my march through woods.

Do they have now 3 attacks or two? Is their secound hand weapon include in their profil?

Unit strength:
What unit strenght does the Hydra have with their two beast masters?
7 or 6 oo 5?