Here is the full list of all 46 50 Cent: Blood on the Sand achievements worth 1,000 gamerscore.
Unlocked all counter kill packs
Unlocked all weapons
Unlocked all assault weapons
Unlocked all special weapons
Had 1,000,000 dollars in the bank
Died on Easy difficulty
Unlocked all close combat weapons
Unlocked all pistols
Completed all missions on Easy difficulty level
Completed all missions on Hard difficulty level
Completed all missions on Normal difficulty level
Completed Mission 9
Completed Mission 8
Completed Mission 7
Completed Mission 6
Completed Mission 5
Scored air time from a single character for more than 10 seconds
Successfully completed 50 scenarios
Completed Mission 4
Shot all 5 targets on any level
Killed an enemy by shooting a rocket or grenade out of the air using Gangsta Fire
Completed Mission 3
Killed 5 enemies fast enough to score a 5 kill combo
Completed Mission 2
Completed a ramp scenario
Ran over a foot soldier
Completed Mission 1
Collected all 5 posters on any level
Successfully completed one scenario
Performed a counter kill
Obtain 15 or more Silver Badges
Obtain all Silver Badges
Obtain 15 or more Gold Badges
Obtain all Gold Badges
Revive a coop player
Complete Mission 1 on any difficulty as a member of G-Unit
Complete Mission 2 on any difficulty as a member of G-Unit
Complete Mission 3 on any difficulty as a member of G-Unit
Complete Mission 4 on any difficulty as a member of G-Unit
Complete Mission 5 on any difficulty as a member of G-Unit
Complete Mission 6 on any difficulty as a member of G-Unit
Complete Mission 7 on any difficulty as a member of G-Unit
Complete Mission 8 on any difficulty as a member of G-Unit
Complete Mission 9 on any difficulty as a member of G-Unit
Complete all missions on any difficulty as a member of G-Unit
Destroy 50 vehicles and destroyable objects on the flying level without dying