Full list of all 50 Unreal Tournament 3 achievements worth 1,000 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Xbox 360.
Completed Chapter 2.
Completed Chapter 3.
Completed Chapter 4.
Defeated Akasha and completed the campaign.
End sprees in 20 matches.
Got the "JackHammer" award in 10 matches.
Got the "Biohazard" award in 10 matches.
Got the "Rocket Scientist" award in 10 matches and "Flak Master" award in 10 matches.
Played a match with every mutator, using only 1 per match.
Got the "Killing Spree" award in 20 matches.
Completed an Instant Action match in every game mode.
Completed Chapter 1.
Complete Chapter 2 in Insane.
Complete Chapter 3 in Insane.
Complete Chapter 4 in Insane.
Defeat Akasha and complete the campaign in Insane.
Complete 1 mission in co-op.
Complete 10 missions in co-op.
Complete a campaign in co-op.
Reach 20 kills against a god-like bot in instant action without dying.
Collect every power up on every map.
Get the "Head Hunter" award in 10 matches.
Get the "Combo King" award in 10 matches.
Get the "Gun Slinger" award in 10 matches.
Get the "Blue Streak" award in 10 matches.
Get the "Shaft Master" award in 10 matches.
Get the "Big Game Hunter" award in 10 matches.
Get the "Roadkill" award in 10 matches
Kill an enemy with every vehicle (except hoverboard).
Get the "Top Gun" award in 20 matches.
Get "Bullseye" (self-destruct to destroy an enemy) award in 20 matches.
Have over 20 minutes of "Berserk Time".
Have over 20 minutes of "Invisibility Time".
Have over 10 minutes of "Invulnerable Time".
Have over 20 minutes of "UDamage Time".
Achieve a Hat Trick in 10 CTF or VCTF matches.
Return 100 Orbs in Warfare matches.
Completed 100 CTF matches played to at least 3 captures.
Complete 100 VCTF matches played to at least 3 captures.
Complete 100 Deathmatch or Duel matches played to at least 20 kills.
Complete 100 Warfare matches played to at least 3 points.
Get the "Monster Kill" award in 20 matches.
Get the "First Blood" award in 40 matches.
Complete a multiplayer match in every game type.
Win a multiplayer match on every map.
Get 200 kills in multiplayer on 50 different days.
Finish playing a "Versus" Ranked match.
Finish with the highest points in a Ranked match.
Win a Ranked match in every game type.
Win 500 Ranked matches.