Bulletstorm: Full Clip Edition

To unlock this achievement, you need to complete 50 team challenges in any Anarchy map.

To do that, you need a co-op partner (one is enough), but you can do it in private matches. Anarchy mode is a wave-based mode where you have to kill enemies and achieve a certain score in each round to be able to move forward to the following round. The match ends after you successfully complete round 20.

At the end of each round, and in higher rounds also sometime during the round, an enemy will spawn that has sort of a blue beam around him and the legend "Team Challenge" on top that will tell you what the team challenge is. To get the team challenge, you must kill the enemy using that special skillshot. It will always be the "team" variation of the skillshot, meaning that both you and your co-op partner will have to hit the enemy to kill it.

Examples of these challenges are:

- Team Vertigo: the enemy dies by falling from a great height.
- Team Bullet Kick: you need to kick and then shoot the enemy
- Team Slide Kick: you need to slide into the enemy and then shoot him to kill him
- Tug-O-War: Both players must use their whip at the same time to tear the enemy in two.

You can press the back () button to check what it is that you have to do to complete the challenge.

Please note that the enemy must die from the skillshot for the team challenge to be successfully completed, if it survives, then you need to try again.

Also, for any challenge you completed to count, you need to successfully finish the round or, in the case of mid-round challenges, you can die and then quit the match (once you're in the lobby). If you simply quit the match, you will lose any progress.

Finally, this achievement seems to be a bit buggy and may require you to complete more than 50 team challenges.

In my case, when I was doing this my game crashed in wave 17 and I was able to rejoin, but when we finished wave 20, my co-op partner had 35 team challenges (which should have been also my stat) and I had 63. We think that when I rejoined, my challenge count for the match doubled. However, I did not get the achievement.

We continued playing and after completing our 50th team challenge (showing as 78 for me in my stats section) I got the achievement, but my co-op partner didn't. We had to complete one more challenge for him to get the achievement as well. We had only palyed with each other, so our counts were / should have been identical.