Back to School is a full featured Left 4 Dead and Left 4 Dead 2 campaign. The storyline is not interfere with none of this games and offer completly new setting of Borden city, struggling to survive in an epidemic apocalypse alongside with original 4 heroes. They are getting a chance to save themselves, since USA marines are coming in town and not falling back this time. But during the battle apogee something goes terribly wrong and local school - the most safe place in city - turns out to be a death trap.
This is the comparison of the old version of the third chapter (from old release - "three chapters" alfa version) with the new version, on which we are working now. As we mentioned earlier the first three chapters are now in the process of conversion, to achieve the required level of quality.
What you see in the screenshots - still WIP, so please do not judge strictly. Basically, we wanted to show the new color corrections, but you can also see other small details.