i beat this on h2h after 3 battles. 1st battle, he had two AA guns in gun pits up front at the start, which knocked out quite a few squads straight up before i mortared them. i grabbed the hedgerow from the trenches, and used my men there to lay down fire on the buildings, also i had guys in the haystacks laying fire on the buildings also. with some smoke, i managed to take the first couple of Descanville buildings, but i wasnt game to run down south across the field like you did. by attacking across the road up north of your pic, you avoid all the buildings behind the couple of front ones. after id taken those, i did run a squad down south like you did actually, and altho most of them died one guy knifed the entire mg squad which was sitting in the building behind the stone fence haha. thus ended my 1st battle.
2nd battle he didnt deploy in the southern town, there was no point as i already had a foothold, and wouldve owned him. he put his last AA gun in that house around the middle, and i came up from the right of the map to grab the little house next to it, lay smoke around the trenches, then rush the building from the right side, taking out the gun. those 2 building in th emiddle of themap are critical, cause thats what u will use to do the final assault on the bunkers. thus ended the 2nd battle.
3rd battle was storming across from those 2 buildings and taking the bunkers and trenches. the bunkers have useless LOS, so you can run right up to them and get inside before anyone can shoot at you. up close and personal combat is what paras do best.
hope this helped