Since there is no confirmation on what the achievements will be for the game, aside from the time being, let's create our own!
Here's some of mine:
"KEEP IT CLEAN - 10 GS: destroy all environmental objects within the city."
"Terminator - 50 GS: Never use a health pack"
"Ray Charles? - 50 GS: Never use the low-light mode, VISR"
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Rookie(50 GS) - Beat Campaign on Medium Soldier(100 GS)-Beat Campaign on Heroic Helljumper(150 GS)-Beat Campaign on Legendary Vidmaster:Squad(0 GS)-Survive 10 waves on Legendary with all skulls on on Firefight mode. Where's Juliet?(10GS)-Complete Romeo's flashback Dutch,We Hardly Knew Ya'(10 GS)-Complete Dutch's flashback More bang for your buck(10 GS)-Complete Buck's Flashback Orbital(5 GS)-Drop in into hell,soldier! Drop(5 GS)-Survive a fall of 15 feet or more Shock(5 GS)-Kill 5 ore more enemies with 1 grenade Trooper(5 GS)-Complete campaign alone in any difficulty