If it makes Mai feel any better, 3 gave Mai the closer base so that she would have time to look around while she crossed the stage.

3 presses herself against a wall when she hears the shot and waits a moment. This would be the time when she'd normally lob a Suction Bomb in that direction and charge, but laser tag is sadly void of such items. So instead, she opts to approach at an angle. It's not a direct approach, but she is coming closer. She'll fire when she sees Mai, but she is also partially open to a counterattack.