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