I have learned that walkthroughs for this game are almost pointless. Most areas are self explanatory on the goal, and it's simply that the skill will become a factor, rather than level knowledge. So I have aimed this at increasing skill, which can come through knowledge, but not necesarily level knowledge.
Firstly, I will cover the basic enemy types and how to defeat them. There are 3 basic types of archetypes, and then several other types of enemies that are a cross between several archetypes. The 3 archetypes are brutes, agiles, and seekers. The seekers constantly look for you, by checking hiding spots, blinding you, and using their long weapons as an advantage. The brutes have heavy armor, and can knock you over with their heavy weapons. Agiles have a much higher speed than others, dodge attacks, and can only be outran by climbing buildings. Now that we have covered the basic 3, let's look at the mixed characters.
Wolfmen- Made just for the Brutus lairs, these follows of Romulus have weak armor and weak weapons, but will outnumber you severely. I would reccomend a dagger to fight them, while using execution streaks. For more info on execution streaks, see the "Advanced Techniques" article.
Horsemen- Near impossible to take out without proper background knowledge. Use the pistol or crossbow if they are the only threat and you too are on horseback, or lock on their horse and hold RT to knock them off the horse, leaving them vulnerabe and on the ground.
Riflemen/Crossbowmen- The newest ranged enemies, weak armor and not too much of a challenge. They may be troublesome if you are trying to climb away. as they will shoot you off the wall.
Recruits/Leaders- With basic armor and basic weapons, they are a mix of all 3 archetypes. Anything can be used to kill them.