Set reporter Gabundy describes the setting of the scene:
The scene seems to be set in a (maybe abandoned?) theme park called Hedgewick’s World. The park map showed rollercoasters, ghost trains and boating lakes and sand dune rides. This particular scene was inside Natty Longshoe’s Castle – a faux medieval fortress complete with dressed dummies, instruments of torture and signs pointing to shops and exits (they were props, not Castell Coch items). It seems a rag-tag bunch of fighters are taking refuge here from a Cyberman attack. Jenna was wearing a military insignia on her jacket, sort of like a set of gold wings with branches circling.
And Timeboy provides some more details:
The Cybermen appear out of smoke towards Clara, creeping slowly towards her. She grabs a mace, and swings it all over the place, hitting them. It doesn’t do anything, so she accepts defeat and throws the mace away in anger, then dodges the Cybermen and escapes! Army people with big guns come and shoot the Cybermen, and the Cybermen fire their arm guns back, hitting some of the soldiers.
As stated in the last post, no pictures were allowed to be taken. But an updated sketch of the redesigned Cybermen can be seen here.