The first one, the 'base' skill tab shares the same skill tab as the class uberskills. Generally, each class has three skill tabs. This does not mean the mod has less customized skill builds compared to the original game, you can still take skills from other skilltrees as long as the prerequisites are met.
For the full descriptions, please see the official website at Īll skill trees are arranged in a linear cascade - there are no branching trees. This page contains a short summary of each character class and their skills.
