usage of the word "character"

1. We might be balancing the sacrifice that was made against the nature of the person. Were they a timid person who made a sacrifice to benefit comrades, we are looking at bravery and valor; were they an impetuous fool who put illusions of personal glory before the safety of comrades, we are looking at mere recklessness.

2. "Character" often includes the quality of being determined and able to deal with difficult situations. From this viewpoint, some might argue that (regardless of the good reasons for it) post-traumatic stress detracts from this aspect of character.

3. This is related to 1. Recklessness does not equate to military valor. Bravery does.

With these comments in mind, I see no need to change the word in any of the three statements. I suggest that 1. and 3. use character in the same way. 2. qualifies the word by adding a focus on the particular aspects of determination and dealing with difficulty, but this does not seem to merit a change of word.

Others may see this differently and I look forward to their alternatives.