Complete the following achievements to unlock Microsoft Gamerscore points.
| Achievement | How to unlock | Points
|
|---|
| Alternate ending | Get alternate ending. | 100
|
| Canon ending | Get canon ending. | 100
|
| Mission 1 | Complete Mission 1 on any difficulty. | 100
|
| Mission 2 | Complete Mission 2 on any difficulty. | 100
|
| Mission 3 | Complete Mission 3 on any difficulty. | 100
|
| Mission 4 | Complete Mission 4 on any difficulty. | 100
|
| Mission 5 | Complete Mission 5 on any difficulty. | 100
|
| Mission 6 | Complete Mission 6 on any difficulty. | 100
|
| Mission 7 | Complete Mission 7 on any difficulty. | 100
|
| Mission 8 | Complete Mission 8 on any difficulty. | 100
|
