Left 4 Dead 2 achievements

Left 4 Dead 2

4.2 from 12231 votes

There are a maximum of 65 Left 4 Dead 2 achievements (50 without DLC) worth 2,767 (1,500)

166,344 tracked gamers have this game, 8,069 have completed it (4.85%)

Achievement Details

SEPTIC TANK in Left 4 Dead 2


Use a bile bomb on a Tank.

  • Unlocked by 111,114 tracked gamers (67% - TA Ratio = 1.22) 166,691  

Achievement Guide for SEPTIC TANK

60,868 (38,585)
Achievement won on 27 Dec 09
TA Score for this game: 2,441
Posted on 28 December 09 at 03:52
This solution has 20 positive votes and 0 negative votes. Please log in to vote.
A very easy way to get this is to go into a survival match online where A tank comes out almost every 2 minutes. When the match starts and you have time to get weapons and equipment before you start the game grab a bile bomb (almost all levels have one at the starting point). From there just survive, wait 1:30-2:00 minutes for a tank to show up, let it go for a teammate (so it's distracted) then READY AIM FIRE the Bile Bomb at the tank. Achievement unlocked
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