Cose interessantissime che non si capiscono dal trailer (cioè nuove classi e 3 fazioni a cui allearsi più fazioni nemiche)

ENHANCED STRATEGY LAYER
Manage XCOM’s relations with factions and counter The Chosen’s operations from the Avenger. Employ new Resistance Orders to prioritize your personal strategy. Soldiers, scientists, and engineers can now be deployed for Covert Actions that award supplies and boost faction favor if successfully completed.

GREATER CUSTOMIZATION & REPLAYABILITY
Soldiers can develop bonds with compatible teammates for new abilities and perks. The SITREP system dynamically adds new modifiers to the tactical layer to make sure every mission provides a unique challenge. Advanced campaign options allow for finer adjustments to game length and difficulty.