The squadron ORB's should give details..... I've nothing for 156, but for example from 103 squardron raid on berlin december '43 gives....
The Route was from Elsham Wolds to Mablethorpe then over the North Sea to Holland and then on into Germany. The force that night consisted of 458 aircraft, 425 Lancasters, 18 Mosquitoes and 15 Halifaxes. The plan of attack for this raid was to be similar to previous raids. Four Mosquitos would drop flares to the south of Berlin as a feint attack; four others would drop metallic anti-radar strips and bombs.
The pathfinders dropped red target markers and sky-markers using the ground mapping H2S radar on the target itself. the route taken was base-mablethorpe, 5250N 0330E, 5235N 0440E, 5238N 1004E, 5236N 1220E, TARGET(Berlin), then 5230N 1350E, 5255N 1350E,5238N 1004E, 5235N 0440E, 5250N 0330E, mablethorpe, base(Elsham Wolds)

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103 Squadron - Noli Me Tangere