Toxicity

Toxicity (zs_trace) or Wound of Vital Poison is the first Zombie Scenario 2 map in Counter-Strike Online.

Details
Toxicity is an extended version of Counter-Strike Airstrip map. Set in an open jungle, the players will have to fight respawning waves of zombies to meet up with a survivor team at a designated open area that will rescue them. However, the zombies have outnumbered and ambushed the team and therefore, lost contact with the players.

This map is pursuit-type map and runs for exactly 2 rounds, similar to Last Clue and Dead End. After successfully defeating the new reptilian boss, Dione, players will receive Dione Pursuit Diary No.1.

During the event, if they have obtained at least 1000 zombie kills before the round ends, they will receive the AK-47 60R for one use only (void if the player leaves the room with a penalty) which this process could be repeated daily.

Singapore/Malaysia
This map was released alongside with the resale of Skull-9 on August 29, 2012.

Playing this map will attain 100% Bonus EXP and Points.

Indonesia
This map was released alongside with Skull-3 on September 12, 2012.

Playing this map will attain 100% Bonus EXP and Points.

Tactics

 * There are several spots which have large rocks in this map, where the player is able to climb onto. If he/she stands above the rock the zombies will be unable to damage the player.
 * When fighting Dione, it is recommended to use Skull-7 or AT4-CS as it deals high damage.
 * It is best to use AT4-CS against Dione since it deals higher damage than the Skull-7. So share it with everyone in the team if you have one.
 * Avoid Dione's poison as it deals moderate to high damage, slows down the victim's movement and decreases 30 to 50 of your health points every second.
 * Further informations and tactics when facing Dione can be found here.

Trivia

 * Some of the sound effects in this map were taken from mission Alamo in Counter-Strike: Condition Zero Deleted Scenes.
 * This map has many cartons of bullets but it is unusable for players.
 * In Singapore/Malaysia region, there are missing door textures. The HUD for the boss is also missing.
 * Despite that the Skull-7 is an Anti-Zombie weapon, it only deals mediocre damage to Dione.
 * Strangely enough, the AT4-CS deals a critical damage per shot even though it is an anti-material weapon, not an anti-zombie weapon.
 * In indonesian, Dionne being called "orang" and the Metus with Deimos zombie being called "ibu zombie".