During the prison break section your squad will search for scorch's prison cell. When they find the cell number Sev informs you that it's number 2187. This is the same number of Princess Leia's cell in episode 4.
Delta Three-Eight's full "name" is RC-1138, a reference to George Lucas's first film THX 1138 (1971).
Until 2019, this was the only appearance of the Delta Squad in a video game. In September 2019, they became part of a content update for Star Wars: Battlefront II (2017).
The HUD and the fact that the player never takes off his helmet was directly inspired by Metroid Prime (2002)
When playing the Campaign a lightsaber can be seen in various places although it cannot be picked up.