At this point run west along the base of the cliff

Find a rope and climb to the top of the cliff. Jump into the trench and kill two or three Germans along the way, pick up grenades and ammunition, walk near the enemy bunker and throw grenades at it, run to the end of the trench and meet some of your teammates, there is a German bunker in front of you and the machine gunners are firing hard, throw three or four smoke grenades out, wait for the fog to fill in and jump out of the trench and run towards the bunker at the south end.