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