Talk:Codex Scanner/@comment-60.240.58.163-20131121121608/@comment-86.29.43.53-20131123110425

Varies by enemy type. Ancient Disruptors max out at 5, Chargers are 30. Moas are 20. Fusion Moas 5.

At a guess, I'd say it's based on how many you're likely to find in a given mission.