Rank: The rank of your character.
Name: Your character's name. Full legal preferred, nicknames are allowed and encouraged.
Date/Place of birth: Self-explanatory
Character history: Your character's short biography before getting thrown into the meat grinder. Updateable as the RP progresses.
Appearance: Physical appearance
Gear: Clothes, bags, LBE, and other related stuff your character has on them for the excursion.
Weapons and equipment: Self-explanatory
Role: The role this character fills in the grand scheme of things.
Miscellaneous: Anything else

Everything can be as much or as little as you like.

Empty sheet for convenience:

Rank: 
Name: 
Date/Place of birth: 
Character history: 
Appearance: 
Gear: 
Weapons and equipment: 
Role: 
Miscellaneous: