Capturer is a capturer, use a fast moving character to get to Point A or C and capture fast.
Scorer is a scorer, use a character who excels at control NOT a Rapid who needs to constantly move off of Point B.
Capturing Point B as a Capturer gives you 1, LET ME REPEAT, 1 point.
Capturing Point B as a Scorer gives you 8, LET ME REPEAT, 8 points.
Point A and C is the most important area for Capturers.
Point B is the most important area for Scorers.
Final Advice: Do not ruin your teams chance of winning by locking in your favorite character and then ignoring the 2nd/Scorer role. Scorer role is how you win the match, Point B is the most important place.