Monkey Around Achievement
Survived 3 times in multiplayer by using the rope ascender.
Solarii Character Faction Only
While having very low health, you must jump on a rope and zip-line away. This must be done from the bottom portion of the rope. When on the rope, hold to use the ascender. Think of it like escaping a bad situation quickly when low on health. Sometimes you will play as a character and not be able to actually use the rope ascender. It is not known if this is a bug, or if some characters are not able to do it in the first place.
Online private match boostable (2 people needed)
This can all be done in one session with a partner. Stand at the bottom of the rope and have the other person shoot you until you are low on health. Now jump up on the rope and hold . Get back to that point and repeat until you get the achievement. The damage must be by another player and not by yourself (this means you cannot use explosions or fire that you cause).