Complete the indicated task to unlock the achievement.

Achievement	How to unlock
30 Kills: Assault Rifle	Kill 30 enemies with the Assault Rifle.
30 Kills: Minigun	Kill 30 enemies with the Minigun.
30 Kills: Shotgun	Kill 30 enemies with the Shotgun.
30 Kills: Sniper Rifle	Kill 30 enemies with the Sniper Rifle.
Act 1 complete	Complete Act 1 on any difficulty.
Act 2 complete	Complete Act 2 on any difficulty.
Act 3 complete	Complete Act 3 on any difficulty.
Act 4 complete	Complete Act 4 on any difficulty.
Act 5 complete	Complete Act 5 on any difficulty.
Air Supremacy	Kill 10 Adult Shriekers.
All Acts completed	Complete All Acts on any difficulty.
All boxed off	Kill 4 enemies at once by throwing a box.
Big ba-da-boom	Kill 6 enemies at once by throwing an exploding barrel.
Bullet berserker	Dismember 30 enemies during overkill cams.
Can't stop the signal	Call in and raise your 1st signal tower.
Combo Master	Reach a combo multiplier of x20.
Cyber defender	Choose to save / defend the pinned-down UGR squad.
Data logs: 100% collected	Find all data logs.
Data Logs: 25% collected	Find 25% of all data logs.
Data Logs: 50% collected	Find 50% of all data logs.
Dropping the bomb	Kill 4 enemies at once in a drone explosion.
Elite Combat Pilot	Complete 100% of chapters at grade S.
Feet didn't touch the ground	Ground pound and kill 3 enemies before they hit the ground.
First-degree Arsonist	Set 4 enemies on fire at once with a molotov cocktail.
Flat as a pancake	Drop a cargo container in the container yard to kill 3 enemies at once.
Float like a butterfly...	Kill a rebel mech with a ground pound.
I ain't got time to bleed	Complete 5 waves in a row without dying.
I am legend	Finish the game on highest difficulty.
I don't step on toes...I step on necks!	Sync kill a rebel heavy.
Keeping an eye on the sky	Kill 10 Shrieker Swarms.
Last Combat Frame standing	Complete a Wave Survival map.
Let's play: Who's The Better Killer?	Kill 50 Rebels.
Manchester's reckoning!	Finish the game on any difficulty.
Mechanised slaughter	Kill 30 enemies whilst piloting Manned Mechs.
No guts, no glory!	Sync kill 50 enemies.
Pick on someone your own size!	Defeat the Nemesis Titan.
Popping Melons, Twisting Melons	30 headshots with Sniper Rifle.
Professional Combat Pilot	Complete 50% of chapters at grade S.
Snuffing out the candles	Kill 4 enemies in a row that are on fire.
Stamping out rebellion	Kill 5 enemies at once with a ground pound.
Stick around	Impale 5 enemies at once by throwing a pole.
Targets Eliminated	Using missiles lock on to 6 separate targets and eliminate them.
Time to die	Kill 6 enemies during 1 slow mo burst.
Welcome to Earth!	Kill 30 Screechers.
You want a war...	Completed a Wave Survival map without continuing.