Collapse

Collapse or Boss Chase (zs_bosschase) is a special Zombie Scenario "raid" map in Counter-Strike Online.

Overview
A secret Intelligence was founded to revive the bosses. Remove all the bosses and uncover the plot.

Goal

 * Find and eliminate all the bosses.

Release date

 * South Korea: 17 September 2015.

Trivia

 * This map is a combination of boss arenas from Dead End, Toxicity, Decoy, Contact and Envy Mask.