Gears of War 2

Unlock Insane difficulty level:
Finish the entire game.

Gamerpic of Marcus#1:
Complete Campaign mode under the Insane difficulty setting.

Gamerpic of Marcus#2:
Complete Seriously 2.0.

Gamerpic of Marcus and Dom:
Get the "Friends With Benefits" achievement.

COG and Locust sets:
With the Collectors Edition of the game, insert the bonus disc in and go
to "Gamer Pictures".


Unlockable skins for Multi-player mode:

Unlock Anthony Carmine:
Complete Act 1 in the original Gears Of War.

Unlock RAAM:
Defeat RAAM in the original Gears Of War.

Unlock Minh Young Kim:
Collect 10 COG tags in the original Gears Of War.

Unlock Dizzy Wallin:
Finish Act 1 in Single Player mode.

Unlock Kantus:
Finish Act 2 in Single Player mode.

Unlock Tai Kaliso:
Finish Act 3 in Single Player mode.

Unlock Flame Grenadier:
Finish Act 4 in Single Player mode.

Unlock Skorge:
Finish Act 5 in Single Player mode.


Achievements:
Complete the following achievements to award the indicated amount of
Xbox Live Gamerscore points.

Green as Grass (10 gamerscore points):
Train the rook on any difficulty level.

It's a Trap! (10 gamerscore points):
Progress through the storyline. Unlocked in Act 1, Chapter 2.

Escort Service (10 gamerscore points):
Progress through the storyline. Unlocked in Act 1, Chapter 4.

Girl About Town (10 gamerscore points):
Progress through the storyline. Unlocked in Act 1, Chapter 6.

That Sinking Feeling (10 gamerscore points):
Progress through the storyline. Unlocked in Act 2, Chapter 4.

Freebaird! (10 gamerscore points):
Progress through the storyline. Unlocked in Act 2, Chapter 5.

Heartbroken (10 gamerscore points):
Progress through the storyline. Unlocked in Act 2, Chapter 6.

Longitude and Attitude (10 gamerscore points):
Progress through the storyline. Unlocked in Act 3, Chapter 3.

Tanks for the Memories (10 gamerscore points):
Progress through the storyline. Unlocked in Act 3, Chapter 4.

Water Sports (10 gamerscore points):
Progress through the storyline. Unlocked in Act 3, Chapter 6.

There's a Time for Us (10 gamerscore points):
Progress through the storyline. Unlocked in Act 4, Chapter 2.

Better Wrapped in Beacon (10 gamerscore points):
Progress through the storyline. Unlocked in Act 4, Chapter 3.

Have Fun Storming the Castle (10 gamerscore points):
Progress through the storyline. Unlocked in Act 4, Chapter 6.

And the Horse You Rode in On (10 gamerscore points):
Progress through the storyline. Unlocked in Act 5, Chapter 1.

You Are the Support, Son (10 gamerscore points):
Progress through the storyline. Unlocked in Act 5, Chapter 2.

Brumak Rodeo (10 gamerscore points):
Progress through the storyline. Unlocked in Act 5, Chapter 4.

Does This Look Infected to You? (10 gamerscore points):
Progress through the storyline. Unlocked in Act 5, Chapter 5.


Beat the Meatflag (10 gamerscore points):
Unlocked by capturing 10 meatflags in Submission (public).

One-Night Stand (10 gamerscore points):
Unlocked by completing 1 chapter in co-op on any difficulty
level (Marcus or Dom).

Open Relationship (30 gamerscore points):
Unlocked by completing 10 chapters in co-op on any difficulty
level (Marcus or Dom).

Friends with Benefits (50 gamerscore points):
Unlocked by completing all acts in co-op on any difficulty level
(Marcus or Dom).

Tourist of Duty (25 gamerscore points):
Unlocked by completing all campaign acts on Casual Difficulty.

Artist of War (75 gamerscore points):
Unlocked by completing all campaign acts on Hardcore Difficulty.

Suicide Missionary (150 gamerscore points):
Unlocked by completing all campaign acts on Insane Difficulty.

Guerilla Tactician (50 gamerscore points):
Unlocked by completing all campaign acts on Normal Difficulty.

A Parting Gift (20 gamerscore points):
Unlocked by killing 10 enemies with a grenade while down but not out
in any mode.

Said the Spider to the Fly (10 gamerscore points):
Unlocked by killing 10 enemies with a planted grenade in any mode.

Seriously 2.0 (50 gamerscore points):
Unlocked by killing 100,000 enemies in any mode.

Organ Grinder (10 gamerscore points):
Unlocked by killing 30 enemies with a cover mounted Mulcher in any mode.

Shock and Awe (10 gamerscore points):
Unlocked by killing 30 enemies with the heavy Mortar in any mode.

Smells Like Victory (10 gamerscore points):
Unlocked by killing 30 enemies with the Scorcher Flamethrower in any mode.

Variety Is the Spice of Death (30 gamerscore points):
Unlocked by killing an enemy with every weapon in the game in any mode.

Crowd Control (10 gamerscore points):
Unlocked by killing 10 enemies by Melee attack with the Boomshield
equipped in any mode.

Takes a Licking (30 gamerscore points):
Melee 30 Tickers in any mode.

Once More, With Feeling (10 gamerscore points):
Unlocked by performing 30 perfect active reloads in any mode.

Kick 'Em When They're Down (10 gamerscore points):
Unlocked by performing all 11 unique executions on a downed enemy.

Party Like It's 1999 (30 gamerscore points):
Play 1999 rounds of multiplayer in any mode.

Pack Rat (15 gamerscore points):
Unlocked by recovering 20 collectibles on any difficulty level.

Collector (5 gamerscore points):
Unlocked by recovering 5 collectibles on any difficulty level.

Completionist (30 gamerscore points):
Unlocked by recovering all 41 collectibles on any difficulty level.

Photojournalist (10 gamerscore points):
Submit a spectator photo.

Back to Basic (10 gamerscore points):
Unlocked by completing the 5 lessons of multiplayer Training Grounds.

Hoard the Horde (30 gamerscore points):
Unlocked by surviving all 50 waves of Horde on any difficulty level
and on any map.

Dirty, Dirty Horde (20 gamerscore points):
Unlocked by surviving the first 10 waves of Horde on any difficulty
level and on any map.

Pound of Flesh (10 gamerscore points):
Use a meatshield to save your life 10 times in any mode.

Crossed Swords (10 gamerscore points):
Unlocked by winning 10 chainsaw duels in any mode.

It's Good to be the King (10 gamerscore points):
Unlocked by winning 10 rounds of Guardian as the leader (public).

Standing Here, Beside Myself (10 gamerscore points):
Unlocked by winning 3 matches of Wingman (public).

Around the World, Again (30 gamerscore points):
Unlocked by winning a multiplayer match on each map in any mode.

You Go Ahead, I'll Be Fine (10 gamerscore points):
Unlocked by winning three matches of King of the Hill (public).