I think that it is interesting that they used a Viking draken long ship instead of a trireme. I can understand that finding ancient ships can be difficult but modern recreations of Greek triremes exist and you don't need to use a completely foreign ship. they could've at least attempted to make the longship look more like a trireme. Small potatoes in the terms of gripes but this reeks of Ridley Scott's smugness of Napolean where he thought being accurate to the setting is dumb. Like who told Scott trench warfare was a thing of the Napoleonic era?