Celebrity SAS star Rachel Johnson revealed she was left horrified when finding out that co-star Marnie Simpson was competing just 10 months after having a c-section. Ex-Special Forces soldiers Billy Billingham, Foxy, Rudy Reyes and Chris Oliver put the celebrities through gruelling regimes and punishing weather – leaving them to question why they left the comfort of their homes. This year, fans will be gifted eight exhilarating hour-long episodes, with the celebrities going the furthest in show history as they undergo winter warfare training in the south islands of New Zealand. There will be n…