[Raymond]

Based on the case book, it's any outnumbering fast break, regardless if it is defense or offense that has more players.

A.R. 101. Team A is on a 3 on 2 or a 2 on 3 fast break, and any player on Team B takes an initial guarding position (1) within the restricted area with two feet on the floor and facing the opponent, or (2) outside the restricted area with two feet on the floor and facing the opponent, in an attempt to draw a player control/charging foul. A2, after receiving a pass, crashes into the torso of the Team B player, and the official calls a player control/charging foul.

RULING 1: The official is incorrect. In any outnumbering fast break situation, all Team B players are initially secondary defenders. The Team B player may not establish initial legal guarding position inside the restricted area, and the illegal contact by B is a blocking foul.

2: The official is correct. Even though the Team B player is initially a secondary defender, he did not establish initial guarding position inside the restricted area. When illegal contact occurs, it shall be a player control/charging foul.
(Rule 4-35.4, 4-30 and 10-1.14)