Yes, the Monarchy of Dovania is almost a 100% Human only faction. However with the lower tech level and current factional instability due to a civil war. You're not going to see much space travel at the current time. Though do not be taken back, as Power Armor and Star ships will start to become more common within Dovania. If you were to join Dovania, expect a more Army based warfare or combat base. However, while a Navy exist, it's severely underdeveloped and most is still in training. Not saying it's not an option, in fact I'm making an entire plot around the Navy being used for exploration into Western Space and Mass Expansion.