Overall the game is pretty good. It has a good sized main campaign for the assassins creed series.

Missions:
The missions are for the most part fun, But the Desmond while painstaking are brief so it does not "ruin" the game so to say. There are plenty of side missions so you will not get bored even after you finish the campaign.

Homestead:
This is a new feature and one of my favorite ones. The homestead missions recruit people to help you and live on your property(kinda like a city). you do missions to increase their levels so your people can craft you better things. EX: Lance(woodworker) the higher his level is the better things he can craft.

Trading: It is also a new feature. Inside each general store their is a accounting book that you can use to trade stuff with people around the colonies.

Crafting:
You can combine the trading and homestead features to craft certain materials. You can find recipes to craft things in chests scattered throughout the city. You have to have the person that crafts that item unlocked and a certain level because some items require higher level people to craft them.

Weapons:
Their is a good variety of weapons from swords to daggers and tomahawks and clubs.
Some weapons that are exceptionally good you have to craft so try to do the homestead missions as soon as possible. I think they appear after sequence 6 and don't worry if their is none on your map just finish that sequence then more will appear.

Armor:
Sadly their is no other options to upgrade your armor but their is plenty of options for different outfits.

Naval Missions:
these are really fun because they involve your ship. You can upgrade your ship to get things like better weapons and reinforcements.

Final Review:
Overall Assassin's Creed 3 is one of my favorite assassins creeds yet. They added so many new features that in my opinion improve the game.-9.5/10