Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Combo Count (25 points): Get 100 combos during a mission
Senjin Count (25 points): Get 50 Senjin combos
Enemy General Defeat Count (25 points): Defeat 500 enemy generals
Total Damage Count (25 points): Get a 10,0000 total damage score in a mission
Mission Score (25 points): Get an "S" rank in a mission
Zakiphon (25 points): Zakiphon joins your team
Chik (25 points): Chik joins your team
Chris (25 points): Chris joins your team
Lange (25 points): Lange joins your team
Mayura (25 points): Mayura joins your team
Sugata (25 points): Sugata joins your team
Lamia (25 points): Lamia joins your team
Orochimaru (25 points): Orochimaru joins your team
Rengeki (25 points): Rengeki joins your team
Hototogisu (25 points): Hototogisu joins your team
Unknown (25 points): A special member joins your team
Unknown (25 points): Another special member joins your team
Little Snow (25 points): Little Snow joins your team
Al (25 points): Al joins your team
Break (25 points): Break joins your team
Culture (25 points): Culture joins your team
Legal Lily (25 points): Legal Lily joins your team
Rulia Bull (25 points): Rulia Bull joins your team
Primrose (25 points): Primrose joins your team
Margaret (25 points): Margaret joins your team
Forto (25 points): Forto joins your team
Tina (25 points): Tina joins your team
Rato (25 points): Rato joins your team
Rim (25 points): Rim joins your team
Anita (25 points): Anita joins your team
Kirat (25 points): Kirat joins your team
7th Generation Hamaou (25 points): 7th Generation Hamaou joins your team
Trickblue (25 points): Trickblue joins your team
Inuou (25 points): Inuou joins your team
Luche (25 points): Luche joins your team
Gyufee II (25 points): Gyufee II joins your team
Shima Zwei (25 points): Shima Zwei joins your team
Maria (25 points): Maria joins your team
Fuuya (25 points): Fuuya joins your team
Nyan (25 points): Nyan joins your team