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