How do I unlock rank 4 parts for the Strike Freedom Gundam?

Unlock and clear the "Great Freedom, Great Responsibility" Extra Mission. To unlock the mission, you must clear all three "A Song of Peace" Friendship Missions for the SEED alliance. You must also shoot down 3000 (NOTE: not 10000 as previously believed) or more enemy units while piloting the Strike Freedom Gundam (combined total for all pilots).

To play "Great Freedom, Great Responsibility", the character you're using must possess a license for the Strike Freedom Gundam and have maxed out relationships with 8 or more characters. More.

Unlock and clear the "One Man Army" Extra Mission. To unlock the mission, you must have completely assembled all playable mobile suits in the game, and your character must possess a license for the Musha Gundam. More.

Unlock and clear the "Amuro Ray" Extra Mission and read the terminal message you receive afterwards. To unlock the mission, you must have cleared CCA Amuro Ray's Official Mode, and your current character must possess a license for the Nu Gundam, be a true Newtype, and have maxed out relationships with 10 or more characters. More.

Clear Uso Ewin's fifth and final Story Mode mission (Connecting Many Lives) on Hard difficulty, and meet the following requirements before clearing the stage: 1. Wait till Quess appears in the Alpha Azieru Mobile Armor and then shoot her down. 2. Make the battleship Rewloola retreat (by taking its field) after you've shot down Quess.

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