Mongoose Mowdown Splatter an enemy with the mongoose in a ranked free for all playlist (Online). |
5 |
Only because of how I got it. Someone shot a rocketlauncher near me and it launched me in the air and smack into someone standing on the bridge on High Ground.
Tankbusters Kill a Tank without it dealing any damage to a Survivor. |
20 |
So so hard considering I didn't have any friends who played Left 4 Dead anymore when I did this.
Vidmaster Challenge: Endure In Firefight, on any mission, pass the 4th Set on 4-player Heroic LIVE co-op. |
25 |
Probably the hardest achievment I've ever done due to how bad my friends are at halo. This took so so many tries, considering you often failed just a few waves short after spending 2hours+ getting to that wave.