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