Caslon's page

Oftentimes, new players will do this for their first couple of games until they get to deciding they want their character to be good at something. This might work better in other games, but the scaling of threats rewards teamwork between a group of specialists investing in their schticks and becoming good at them, and punishes overly broad characters who aren't also packing big class features like high level casting. You can roleplay growth as a character while also sticking to a track that makes them mechanically viable/useful/superior, the two things aren't linked. Not all priests cast spells, not all street thieves take levels in rogue (Most are better off not doing so.)

Your character mechanics don't limit your roleplay, and your roleplay should only limit your character mechanics so far as you and your DM are comfortable with.

So the Ulfen Guard are "totally not the Varangian Guard", the bodyguard to Byzantine rulers, however what bodyguard means in this context is kinda more " private army of vikings" than guys standing next to the throne, though presumably that would also be in portfolio. They were certainly a battlefield force, so your spear type stuff could be appropriate.

Drawing from their inspiration, though, theyhad horses but also operated afoot, probably wore medium armor, chain or lamellar, and carried shields, daneaxes and swords, and bows. Could be a cavalier but that sounds like a pretty solid ranger to me. Switch hit, or take sword and shield style for shield master at level 6 before going into the ulfen guard PRC. Have a horse animal companion, some throwing weapons and a bow for backup and go battleaxe and shield. Favored enemy can be whatever but humans makes sense for a soldier slash bodyguard. Just some thoughts, anyway. Have fun with it, viking hero!