C.Duplis appears in the level Hope in Hadley's, when Winter tracks through Operations he saves C.Duplis, A.Duplis and Maio. Shortly afterwards while heading for Operation anther marine Hohenkerk is captured by an Alien and not seen again.
Reference stats table.
Appearances in the following;
Aliens: Colonial Marines
After being rescued C.Duplis continues in the level Hope in Hadley's with A.Duplis and Winter helping to defend the Vehicle Bay. Later he with the other rescued and surviving Marines in the level get aboard one of the departing W-Y FTL spacecrafts.
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.