Possible Clues:

• Scoffer unknown to get involved in supreme commander's retreat
• 'Yeah, right' speaker
• Doubter of others' motives
• One who questions the worth of anything
• Sceptic close to army blocks top officer's rise
• Misanthrope showing a little mercy? Nice!
• Pessimistic person
• One who takes a pessimistic view of human goodness or sincerity
• Suspicious sort
• Like old characters in game, less than completely pleasant