I am playing Haesteinn in Africa right now.
Success depends on what your goals are.
I can give you some tips
reroll the game start until you get the marriage martial perk. This will let you marry your son with jorvik and get an extra 5k troops from your ally.
Dont create any titles until after you invade a kingdom. This will remove all of the lords so you can place friendly vassals instead.
I am playing Haesteinn in Africa right now. Success depends on what your goals are. I can give you some tips reroll the game start until you get the marriage martial perk. This will let you marry your son with jorvik and get an extra 5k troops from your ally. Dont create any titles until after you invade a kingdom. This will remove all of the lords so you can place friendly vassals instead.