Difficulty

Notable Differences

 * Friendly fire does no damage, though it is still registered as a friendly fire incident and will still disqualify the players for the Safety First achievement.

Notable Differences

 * The Tank has 4000 health points.
 * Non-headshots get no bonus damage

Notable Differences
This is a mostly complete list, extracted in part from the exposed cvar interface. See Console_commands for information on the cvars.


 * The main attack of the Witch is a one-hit kill.
 * The Tank has 8000 health points.
 * The Tank takes longer to burn when set on fire
 * Fire in general deals more damage to the survivors
 * Friendly fire does full and unforgiving damage to the survivors
 * Typical Infected damage is 20 damage per swipe plus a damage modifier for hits in the back (much more deadly).
 * All first aid kits are converted into pain pills with the exception of those in the safe rooms, 1-2 on the way to the finale and 4 at the finale
 * Intervals between mob attacks are much shorter