One of my hired pilots picked up Klutz and Jynxed attribute flages.
Anyway to change that?
How much does it effect combat?
Should I fire the pilot and get another? That would be througing away Bulwark and Multi-target.

AFIK it only affects things in the crew interactions while traveling. One of my current pilots has teh Klutz attribute and she is pretty reliable in combat. She may break something expensive on the Argo though.

Attribute tags like this can be added or lost as a result of those crew interactions. Best as i can tell it's to add personality and flavour to what would otherwise be generic interchangable pilots.

+OMG those jin\xed pilots, dismiss them. Not only do bad things happen on the Argo they give bad attribute flags to the other mechwarriors. There doest seem to be a way to get rid of the jinxed flag other than getting rid of the pilot.

I LOVE the tags that warriors can get. It adds personality to the warriors and sometimes affects later interactions aboard the Argo. The high/low spirit tags earned on the Argo DO carry over into the battlefield, but they are not critical wins/losses Many are temporary tags anyway. Don't worry too much about them.