u/AdocV2

The heros have extra dialogue. Example, when Xian enters the prison she'll say "they keep the worst of the worst here", and after talking with Titus she says "I don't like the way they're looking at me". These lines weren't in the original.

Carried over damage/killing quotes from Riptide to part 1. In the original the heros always stayed silent when killing zombies.

Added zombies to the cages in the laboratory. Fixing a continuity error from the Ryder White campaign.

In Riptide they changed the animation of when the heros go into fury mode at the perry station and when fighting Harlow. In the original they just look at their hands, in the definitive their arms stretch out.

Also the audio is bugged in Fury Mode in part 1 and Riptide. The volume is very low.