Here is the full list of all 17 SOS achievements.
Link your account to Hero.TV
Finish your first match
Form an alliance for the first time
Escape an SOS map from a ranked match for the first time
Kill your first Regular Hupia
Kill your first Small Hupia
Kill your first Relic Hupia
Pick a lock for the first time
Cure your first infection
Be the first contestant to leave the island
Attach a lure to a Hupia
Attach a lure to another player
Revive a player with the defibrillator
Reach level 10
Reach level 50
Kill a player with the defibrillator
Reach level 100