John Lumpkin, managing partner and lead designer on the mod for Pavonis Interactive, said that the mod makes some changes from the original Long War, such as now relying on Infiltration mechanics instead of fatigue factor for team members.
ADVENT strategic AI that tries to counter your moves. Dozens of new enemies and smarter battlefield AI. Two new weapon tiers, lasers and coilguns. Nine soldier classes: Sharpshooter, Shinobi, Ranger, Assault, Gunner, Grenadier, Specialist, Technical and Psionic (plus Sparks for DLC owners), each with unique secondary weapons. Manage resistance Havens and have resistance members scrounge for supplies, gather intelligence or recruit more people to your cause. Infiltration mechanics that require you to send out multiple squads at once. A much longer campaign, running for 100 to 120 missions on average. The Long War 2 is a total conversion mod for XCOM 2 and revamps some game mechanics, while expanding on other, such as classes and number of missions. The popular Long War mod fro XCOM: Enemy Unknown has now made its way to XCOM 2 as promised earlier this month.