Time Clickers
90 Achievements
100,000 XP
Google Play
Squad 3
Get Team DPS to 10.0T
1,000 XP
27.23%
How to unlock the Squad 3 achievement in Time Clickers - Definitive Guide
I got this on Level 59 by idle farming. Also note that you can get this through natural progression, but at a higher wave by idle farming as little as possible.