A Kangaroo Armoured Personnel Carrier (might be a Sexton or Priest SP gun its hard to see) crossing an anti tank ditch bridged by two Churchill ARKs (Armoured Ramp Carrier) one on top of the other.
AVRE Bobbin road layer. A Hessian reinforced with chestnut paling road that could be laid across soft ground to prevent following vehicles bogging down. Note extended air and radiator intakes for wading through water.
Dieppe was the reason Hobarts Funnies came about. To be fair to the Churchill its hard enough to walk on the shingle beach at Dieppe and any tank would struggle.
Churchill Double Onion. A framework of steel section was loaded with 1,000 pounds of explosive, the tank placed the frame against an obstacle like a concrete wall detached and backed off 100 feet paying out an electric detonation cable. Click the link to see more.