I think that the max amount of traits are 5 positive and 5 negative, I currently have 5 positive traits on one of my teams.
I also recruited a 4th team and from level 1 they had a special trait, being hostage rescue specialist.
AND, if it helps any, I purchased the quick response vehicle IV (150 mission funds) And it has made my LIMA lvl 20 with 5 positive traits gold viable in hostage situations. (I currently get 84% chance of success which is viable I think)
