Darktide-Heresy level always putting Endless horde

Hey Everyone,
A question for the game atm, not sure if it a bug or if a feature for the beta at this point in time, but it seems that every time I load into a heresy mission (Lvl 4) the endless horde feature is attached to the mission, regardless if on the mission select screen it stated as such. Wondering if anyone else has run into this.