Aliens: Fireteam Elite

Throughout the levels there are tiny red explosive barrels. To be honest there are quite a few.

The best time to do these in bulk are during the Prepare for Battle parts when you have to wait for an objective to finish.

You’ll be swarmed with tons of Xenomorphs.

If you’re playing in casual you can get close to the barrels and let them swarm around you and jump back with B and shoot the barrel for a decent chunk each time.

On the first mission when you run into your first alien you’ll be swarmed first from one side and then from the other. Both sides have two barrels each and can be used for a quick 10-15 kills if timed right. Rinse and repeat.

In this video guide I will show you how to kill 50 enemies with explosive barrels or pods. Pretty easy, just keep running the first mission since it has the most explosives. Try and group as many as you can together and eventually the achievement will pop.