Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Complete Act 1 (20 points): Complete Act 1.
Complete Act 2 (25 points): Complete Act 2.
Complete Act 3 (30 points): Complete Act 3.
Complete Act 1 on Hardcore (20 points): Complete Act 1 on Hardcore.
Complete Act 2 on Hardcore (25 points): Complete Act 2 on Hardcore.
Complete Act 3 on Hardcore (30 points): Complete Act 3 on Hardcore.
Complete the Tutorial (20 points): Complete the Tutorial.
Von Helsing (25 points): Crush an enemy to death with a spike.
Open Sesame (25 points): Successfully open a physics or hinged gate for the first time in single player.
Zapp! (25 points): Successfully block (or unblock) an energy beam for the first time in single player.
Clap On/Clap Off (25 points): Successfully used a TD switch for the first time in single player.
Combat Engineer (25 points): Successfully raise/lower a bridge for the first time in single player.
Han Shoots First (25 points): Kill an enemy by using TD and forcing them into the beam in single player.
Use the Force... Field (25 points): Kill someone by forcing them into a shield.
Collect a Data Cell (5 points): Collect a data cell.
Collect 35 Data Cells (35 points): Collect 35 data cells.
Collect all 100 Data Cells (60 points): Collect all 100 data cells.
Deathrace 2161 (15 points): Cumulative 25 kills running over enemies with the TDV-1.
Dragon's Breath Specialist (15 points): Cumulative 25 kills with the Dragon's Breath.
Mole Mine Specialist (15 points): Cumulative 25 kills with Mole Mines.
Rhino Specialist (15 points): Cumulative 25 kills with the Rhino.
Catapult Specialist (15 points): Cumulative 50 kills with the Catapult.
ST-4 Torpedo Launcher Specialist (15 points): Cumulative 50 kills with the ST-4 Torpedo Launcher.
Lodestone Specialist (15 points): Cumulative 25 kills with the Lodestone.
Raptor Specialist (15 points): Cumulative 50 kills with the Raptor.
ALM-37 "Deep Freeze" Specialist (15 points): Cumulative 25 kills of people frozen by the ALM-37 "Deep Freeze."
Invader Specialist (15 points): Cumulative 50 kills with the Invader.
Scorpion Sniper Rifle Specialist (15 points): Cumulative 25 kills with the Scorpion Sniper Rifle.
Bulldog Specialist (15 points): Cumulative 50 kills with the Bulldog.
Pacifican SMG Specialist (15 points): Cumulative 50 kills with the Pacifican SMG.
Bangalore Specialist (15 points): Cumulative 50 kills with the Bangalore.
Black Widow Specialist (15 points): Cumulative 50 kills with the Black Widow.
Dead Aim (15 points): Accumulate 25 headshots kills.
Pugilist (15 points): Melee kill 10 enemies in a row.
What Goes Up (25 points): Kill 5 Hydras while they're in mid-air.
Welcome to the Suck (15 points): Kill 5 or more enemies with a single Vortex Grenade.
Beware falling objects (30 points): Kill an enemy using the Stomp Augmentation.
Super Soldier (30 points): Acquire All Augmentations in the Game.
President of the USA (25 points): Accumulate 100 Alliance Wins.
President of Pacifica (25 points): Cumulative 100 Pacifican Wins.
It's Good to be King (15 points): Win 50 Kingmaker games.
All Your Base Are Belong to Us (15 points): Win 50 Break-In Games.
Gold Plated Shovel (15 points): Win 50 Excavation games.
Standard Bearer (15 points): Win 50 CTF Games.
Inductee (15 points): Awarded for completing one multiplayer game.
Private (15 points): Awarded for completing 10 multiplayer games.
Battle-Tested (15 points): Awarded for completing 100 multiplayer games.
Corporal (15 points): Awarded for completing 250 multiplayer games.
Battle-Hardened (15 points): Awarded for completing 500 multiplayer games.
Demolition Expert (15 points): Awarded for completing 1,500 multiplayer games.