"Strength in numbers" Achievement [solution is found]
Step 1: From the Steam Workshop subscribe to Improved Bots (Advanced) mod. Step 2: Start the game and in the main menu, open the console (~). Step 3: Enter the following command: map c1m4_atrium teamscavenge Step 4: Defeat a team of bots. You only have to bring one of the canister in two rounds. Thx Malkavian!