Yeah looks like your party is pretty squishy. I don't think Guard Order will help you that much unless it's a very high level. :/ My Hoplite really helped that fight by preventing everyone from dying... Provoke and Line Guard really helped there. Make sure your Monk has at least Line Heal and Revive too.
Erm, I don't think you can escape from the Narmer fight, though I never tried it. Narmer will run when he's 50% or less HP though, and you can heal up then.
