Unsafe achievements

Lose once.

Repair one suit

Kill one enemy

Win one map alone.

Repair a suit while its on low oxygen levels.

Find all data fragments in Black Monolith

Be left behind, while the rest of the team escapes.

Pick up the multipass for the first time.

Try the "Exterminate Xenos" button, just in case...

Finish all power panels in less than 5 minutes,

Win a game after using all tools at least once.

Win a game without using any tools