The Big Fuckin' Signal Challenge requires you to track five xeons at once on your Motion Tracker in A:CM. With all the Xenos roaming about, this shouldn't be much of a problem

Big Fuckin' Signal is a challenge in Aliens: Colonial Marines


Track 5 xenos at once on your Motion Tracker




Small Emblem Pack: Grinning


Use your Motion Tracker when near a big group of aliens and keep it out. Don't kill them until after you have gotten the achievement.