Complete each achievement to get the allotted gamerscore.
------------------------------------------------------------------

War of the Last Alliance (5) -- Complete the training level.

Battle of Helm’s Deep (25) -- Complete the Helm’s Deep level in the single player "War of the Ring" Campaign.

Conquer over Isengard (25) -- Complete the Isengard level in the single player "War of the Ring" Campaign.

The Mines of Moria (25) -- Complete the Mines of Moria level in the single player "War of the Ring" Campaign.

Siege of Minas Tirith (25) -- Complete the Minas Tirith level in the single player "War of the Ring" Campaign.

Battle of Pelennor Fields (25) -- Complete the Pelennor Fields level in the single player "War of the Ring" Campaign.

Assault on Osgiliath (25) -- Complete the Osgiliath level in the single player "War of the Ring" Campaign.

Assault on Minas Morgul (25) -- Complete the Minas Morgul level in the single player "War of the Ring" Campaign.

All's Well as Ends Better (35) -- Complete the Black Gate level in the single player "War of the Ring" Campaign.

Assault on Mount Doom (25) -- Complete the Mount Doom level in the single player "Rise of Sauron" Campaign.

Siege of Osgiliath (25) -- Complete the Osgiliath level in the single player "Rise of Sauron" Campaign.

Fall of Minas Tirith (25) -- Complete the Minas Tirith level in the single player "Rise of Sauron" Campaign.

Battle of Weathertop (25) -- Complete the Weathertop level in the single player "Rise of Sauron" Campaign.

Siege of Moria (25) -- Complete the Mines of Moria level in the single player "Rise of Sauron" Campaign.

Razing of Rivendell (25) -- Complete the Rivendell level in the single player "Rise of Sauron" Campaign.

The Land of Shadow (35) -- Complete the Shire level in the single player "Rise of Sauron" Campaign.

Splintered Shields (15) -- Kill 100 enemies in one life as the warrior.

Blade That Was Broken (15) -- Score 30 hits on the combo counter as the warrior.

Blademaster (20) -- Kill 25 players as the warrior in any ranked match.

Eagle Eyes (15) -- Get 25 headshot kills in one life as the archer.

Rain of Fire (15) -- Kill 25 enemies in one life with the archer's fire arrows.

Marksman (20) -- Headshot kill 10 players as the archer in any ranked match.

A Knife in the Dark (15) -- Use the scout to backstab 10 enemies in one life.

Fire and Slaughter (15) -- Kill 25 enemies in one...