I see the rules on fear and how they affect a Space marine in squad mode. But what about if the Pc isnt in squad mode? The chart on fear says thats for Npcs but we could really use a chart on Pc's

Solo Mode - get a -10 penalty on Willpower tests for each degree of Fear the creature possesses.

Squad Mode - leader rolls Willpower or the team loses Cohesion.

This thread should go into Rules Questions subforum.

Basically it does very little indeed if characters are in solo mode. The -10 to willpower doesn't even apply to focus power rolls.