Brittany Cartwright has seen the negativity surrounding her early exit from Special Forces - and she has a message for those who questioned how hard she tried. During the season 4 premiere, which aired on Thursday, September 25, Brittany lasted most of the day and endured three separate challenges before opting to leave. "It was definitely complicated. It was very hard, I am not going to lie. Even when they put the bag on my head on the bus, that was hard.