After the USS Sephora and USS Sulaco are joined, an explosion which was felt around the two spacecraft injured members of the squad sent in first. Winter then enters the USS Sulaco to find members of O'Neal's Actual squad injured by the blast.
Reference stats table.
Appearances in the following;
Aliens: Colonial Marines
The injured Marines including O'Reilly are cleared from the docking umbilical by the time Winter retreats back aboard the Sephora.
The events of the game Aliens: Colonial Marines are set between those of the films Aliens and Alien 3 but diverge from the film Aliens and over lap the film Alien 3.