Kill 20 Enemies with the Desert - 5

Kill 50 Enemies with the AK-47

Kill 5 Enemies with a Single Punch After Weakening Them with Gunfire

Finish Left Behind on Normal

Win the water gun fight

Win the brick throwing contest

Connor caught up with Rupert

Markus stood his ground against the police

Markus conducted a pacifist riot

Hank and Connor were friends until the end

Don't lose any fight before reaching the end

Markus reached the camp and liberated the androids

Markus or Connor detonated the freighter