The Greater Good: Psionics can only be learned from interrogating a psionic alien.Absolutely Critical: A flanking shot guarantees a critical hit.Red Fog: Combat wounds will degrade the soldier's mission stats.Hidden Potential: As a soldier is promoted, stats increase randomly.*.Not Created Equally: Rookies will have random starting stats.*.New Economy: Randomized council member funding.*.Damage Roulette: Weapons have a wider range of damage.*.

Many of these are unlocked after you beat the game-if you've already completed XCOM, you should see the full list. The free update includes (but isn't limited to) the following options.