Currently the customization is weird and in some areas pointless. If you look at some of Ubisofts other games Division, FarCry and even assassins creed; the character and load out customization is a lot better and useful. Here's some changes that would be nice.

1.Stats
The stats currently are weirdly placed on the weapons/armor and aren't that great. A simplified take on stats would be this.
Defense: That amount of damage mitigated from attacks.
Attack: The damage you do
Speed: How fast you move and recover from attacks and attacking.
These stats should be not be changed since this is what the character is.
Here's what I feel each hero would be like.

Warden
Balanced and straightforward
Attack: |||||||||||||||
Defen:||||||||||||||||
Speed: |||||||||||||||
The warden has completely balanced stats which make it the most versatile character and allow the players to really choose what play style they want.

Conqueror
Defense and Crowd control
Attack: ||||||||||||||
Defen: ||||||||||||||||||||||||
Speed: |||||||
The Conqueror is great for holding down objectives or holding off the enemy team while his teammates maneuver in to help. He can take a lot of hits.

Raider
Attack and crowd control
Attack: ||||||||||||||||||
Defen: |||||||||||
Speed: |||||||||||
The Raider excels in crushing waves of enemies while still being able to take some damage. They focus on damaging and pushing the enemies.

Berserker
Great dueler
Attack: ||||||||||||||||||||||
Defen: |||||||
Speed: |||||||||||||
The berserker initiates 1on1 fights to pick off enemies that have pushed to far forward or are alone. The berserker can quickly burst your health down.

Kensai
Front Liner
Attack: ||||||||||||||
Defen: ||||||||||||
Speed: ||||||||||||||||
The Kensai is good at taking positions and then moving on. The Kenasi also excels in a team fight have good range and area attack. The Kensai should always lead a fight.

Orochi
Assassin
Attack: ||||||||||||||
Defen:|||
Speed: ||||||||||||||||||||||||
The Orochi is the battlefield assassin that seeks to finish off wounded enemies or harass slower enemies. The Orochi excels at picking off weak targets.

The use of these general stats would make the game easier to choose a hero.

Heros also need a change to the Feats as well. I think there should be 4 active fears and 4 passive feats. When you level up you gain your active and your passive. This would allow more customization too what your play style is and what your hero brings to the battlefield. The first three feats and all the passives should be faction specific and you should have a list to pick from. The last feat should extra powerful but be hero specific. These final feats could be something like this.

Warden; Rally Cry: All allies in the surrounding area get a boost to attack and defense for a short time. In addition the Warden will heal cduring this time constantly.

Conqueror; Battle Medicine: The conqueror emits an aura that revives all allies in the area. If the Conqueror dies during this time, the reviving stops.

Raider; Unstoppable: For a short time the raider consumes no stamina and his heavy attacks knock enemies back and have a chance to stun them.

Berserker; Berserk: The Berserker goes into a frenzy increasing their attack speed, movement speed and damage. Kills increase its duration slightly.

Kensai; Last Stand: You may activate this ability If the Kensai takes fatal damage; instead he yells a Kai that stuns nearby enemies and gains 1/2 of his health back. During this time his defense is increased greatly and his attacks deal more damage. After the duration he dies.

Orochi; Falling Leaf Strike: If the Orochi successfully hits an upper heavy attack he may activate this ability to instantly execute his target, beheading them where they stand. Executions reduce the cool down of this ability.

I have a few more ideas that I'm trying to polish and I will post them later. Let me know what everyone thinks and how they feel about the current customization.