Worst character for me was Evo. Quoting Brickipedia, "In Ordeal of Fire, Evo is calm and collected, and he drops into a meditative state between battles... In Breakout, however, he is more like a rookie slightly unsure of himself, as he asks Furno for help several times when looking for Toxic Reapa."
It's more of the change of character than accent - I preferred the first Evo to the rookie Evo.
Experience is the trick.
Evo can easily be compared to strict military standards. It doesn't matter if you got picked from the line of volunteers, survived the training, passed health tests and performed with outstanding grades and all that nonsense talk.
It only means you have a upcoming opportunity to contribute to your squadron and not even the wisecrackers don't get any favors about their assigned units.
A Private First Class with no service record isn't going to be likely to be assigned to a team with seasoned veterans.
You're usually working with other soldiers that have similar experience usually led by one experienced sergeant or lieutenant.
Respect and being acknowledgement are things that are gradually earned by doing and fulfilling assigned missions which you will learn from.
Stormer is a good example, he didn't become a Alpha leader from nothing.
He started as a rookie and thats how he earned valuable experience. Teamwork is also best learned if you're working with people who you haven't worked with before so you can put your skills together and make a unit that works efficiently or else you wind up you might have a team that doesnt fit together such as one team member might have abilitieswhich are best suited to work with different abilities even if you don't feel right like Evo did.