Here is the full list of all 44 Command & Conquer 3: Kane's Wrath achievements worth 1,000 gamerscore.
Defeat a Brutal difficulty AI in a 1v1 skirmish match
Complete 'Kane's Challenge' with ZOCOM
Complete 'Kane's Challenge' with the Steel Talons
Complete 'Kane's Challenge' with GDI
Complete 'Kane's Challenge' with the Marked of Kane
Complete 'Kane's Challenge' with the Black Hand
Complete 'Kane's Challenge' with Nod
Complete 'Kane's Challenge' with Traveler-59
Complete 'Kane's Challenge' with the Scrin
Complete 'Kane's Challenge' with Reaper-17
Win a Skirmish game with Traveler-59
Win a Skirmish game with Reaper-17
Win a Skirmish game with the Scrin
Win a Skirmish game with the Marked of Kane
Win a Skirmish game with the Black Hand
Win a Skirmish game with Nod
Win a Skirmish game with ZOCOM
Win a Skirmish game with the Steel Talons
Win a Skirmish game with GDI
Use a Superweapon in a match
SECRET: Rescue all Nod units from the Traveler-59 Cultists
Complete Act III of the Campaign
Complete all Campaign missions on Hard Difficulty
SECRET: Raise the Marked of Kane
Complete Act II of the Campaign
SECRET: Destroy all three GDI MARVs
SECRET: Destroy the Philadelphia
SECRET: Steal all the Gold Bullion
Complete Act 1 of the Campaign
SECRET: Capture Brother Marcion
SECRET: Destroy Brother Marcion's Statues
Play in a quick match game as Traveler-59
Play in a quick match game as Reaper-17
Play in a quick match game as the Scrin
Play in a quick match game as the Marked of Kane
Play in a quick match game as the Black Hand
Play in a quick match game as Nod
Play in a quick match game as ZOCOM
Play in a quick match game as the Steel Talons
Play in a quick match game as GDI
Play in a 2v2 Custom Match
Play in a 1v1 Custom match
Complete Boot Camp
Skip Boot Camp