When necessary, I will explain the perks in greater detail but I will assume for the most part that the player is familiar with what perks do.ĭisclaimer: I typically use the following Second Wave options in my campaigns that slightly influence how I use certain classes: Red Fog, Hidden Potential, and Aiming Angles. Most of the perks are identical to their vanilla counterparts, but Long War adds a few perks and changes others. These guides are designed to introduce new Long War players to the new classes. Long War is a comprehensive mod for the computer game XCOM: Enemy Within. Long War expands the base game’s four classes into eight.