Left 4 Dead 2 - Crash Bandicoot: The Return Of Dr. Cortex Secrets Part 2 (2013)
0:00 Map 1 - At the end of the chapter there is a way down to have a party.
0:40 Map 2 - There is a crate near the start that opens up a path.
1:42 Map 5 - A secret path to some crates with voice lines.
Download the map here:
https://steamcommunity.com/sharedfile...
https://www.gamemaps.com/details/24068