Here is the full list of all 41 Outcast - there are Second Contact achievements.
Finish all sub-missions
Finish main mission
Obtain the Mon in Okaar.
Defeat 10 soldiers using dynamite.
Complete the organ puzzle in Okaar.
Find the Achondar.
Kill all the gamors in the Okaar arena.
Reach the region of Okaar.
Set Shamaz Keb free.
Help Zernar fix the boat light by providing a piece of helidium from Motazzar.
Travel 10 times through Daokas.
Defeat at least 20 soldiers in Motazaar for Ashkar.
Defeat 250 soldiers.
Damage the rift bridge to slow the soldiers down.
Reach the region of Motazaar.
Obtain the Mon in Okasankaar.
Destroy the company of soldiers located in Zorkatraz.
Unlock the wheel to enter the Darosham!
Help Sadar fix his boat using a Zeedog plant.
Talk to 25 important Talans.
Reach the region of Okasankaar.
Help Heza repair his well.
Defeat 150 soldiers.
Achieve the highest level of reputation by helping the Talans.
Defeat more soldiers to convince Zot to stop paying taxes.
Find the Mon in Shamazaar.
Kill 25 Krakits.
Destroy the four boats in Shamazaar to weaken the soldiers!
Use dynamite on a chest.
Kill the gamors far to the east of the village.
Reach the region of Talanzaar.
A worker at one of the temples wants the Yods to clear away the debris.
Kill the beast in the water behind the temple of Ka.
Fill your backpack with over 250 rounds for your UZA-SH1.
Defeat at least 20 soldiers for Maar.
Find a Shamaz and convince him to heal Ilott.
Deliver a Twon-ha for Zolass.
Find Shamaz Zeb and speak to him.
Complete all four tests with Jan.
Complete the stealth tutorial in Ranzaar with Jan.
Obtain over 300 rounds for your HK-P12.