Complete the following achievements to unlock Xbox Live Gamerscore points.
10 Side Missions Completed (5 points): Complete 10 side missions. 
Freedom Fighter (25 points): Liberate 11 provinces in San Esperito. 
Mission 7 Completion (25 points): Complete Story mission 7. 
Mission 14 Completion (50 points): Complete Story mission 14. 
All Story Missions Completed (125 points): Complete all Story missions. 
Protector of the People (50 points): Liberate 22 provinces in San Esperito. 
Saviour of San Esperito (75 points): Liberate every province in San Esperito. 
15 Takeover Missions Completed (25 points): Complete 15 Takeover missions. 
30 Takeover Missions Completed (50 points): Complete 30 Takeover missions. 
45 Takeover Missions Completed (75 points): Complete 45 Takeover missions. 
Salt Refinery... Yeah Right (5 points): Complete Collect mission 1. 
Back-Door Action (5 points): Complete Collect mission 2. 
I Want a Super-Potent Weapon (5 points): Complete Collect mission 3. 
I've Got the Blueprints, Man (5 points): Complete Collect mission 4. 
I Want My Intel Back (5 points): Complete Collect mission 5. 
Red Eyes (5 points): Complete Collect mission 6. 
We Have Ways of Making You Talk (5 points): Complete Collect mission 7. 
Rico the Beach Comber (5 points): Complete Collect mission 8. 
Staying Power (5 points): Complete Collect mission 9. 
The Cleavage (5 points): Complete Collect mission 10. 
Slippery When Wet (5 points): Complete Collect mission 11. 
New Kind of Kick (5 points): Complete Collect mission 12. 
White Beaches (5 points): Complete Collect mission 13. 
All Race Missions Completed (15 points): Complete every Race mission. 
All Collect Missions Completed (45 points): Complete every Collect mission. 
20 Side Missions Completed (10 points): Complete 20 Side missions. 
30 Side Missions Completed (15 points): Complete 30 Side missions. 
40 Side Missions Completed (20 points): Complete 40 Side missions. 
50 Side Missions Completed (25 points): Complete 50 Side missions. 
Champion Of Race 1 (5 points): Complete Race 1. 
Champion Of Race 2 (5 points): Complete Race 2. 
Champion Of Race 3 (5 points): Complete Race 3. 
Champion Of Race 4 (5 points): Complete Race 4. 
Champion Of Race 5 (5 points): Complete Race 5. 
Champion Of Race 6 (5 points): Complete Race 6. 
Champion Of Race 7 (5 points): Complete Race 7. 
Champion Of Race 8 (5 points): Complete Race 8. 
Champion Of Race 9 (5 points): Complete Race 9. 
100 Kills (10 points): Kill 100 Enemies. 
250 Kills (20 points): Kill 250 Enemies. 
500 Kills (50 points): Kill 500 Enemies. 
Most Wanted 1 Min (10 points): Survive for 1 minute with maximum wanted level. 
Most Wanted 2 Mins (25 points): Survive for 2 minutes with maximum wanted level. 
Most Wanted 5 Mins (50 points): Survive for 5 minutes with maximum wanted level. 
20 Land Vehicle Stunts (10 points): Complete 20 land vehicle stunts. 
20 Sea Vehicle Stunts (10 points): Complete 20 sea vehicle stunts. 
20 Air Vehicle Stunts (10 points): Complete 20 air vehicle stunts. 
All Stunts Completed (50 points): Complete all stunts. 
20 Car-To-Car Stunts (5 points): Complete 20 car-to-car jumps. 
Base Jump 1000 Meters (5 points): Base jump from 1,000 meters or higher.