Apon making creating a load out, you are given the choice of either 5 classes, which include their own skill tree and upgradeable skills and passives, the classes are:
The Guardian: A heavily armored Knight that specialises in soaking up damage and covering team mates, the guardian's 2 skills are,
1. Charge
The guardian charges, similar to the shield bash, the range is longer though, apon reaching the end, the guardian puts up a temporary wall, acting is an wall and cover for allies, and an immovable object for enemies.
2. Fortress