It wasn't that hard. What you gotta do is build a few mg emplacements covering the bridges (4-6 will do) while you do that build some AT guns, once your emplacements are done put some mines all over the bridges, and build sandbags in good position to watch the bridges, once you do that move your AT guns behind the bags, once all your ATs are deployed build a bunch of mgs and put them in buildings and behind sandbags to watch the bridge, after which you build 3-4 mortar teams and set them up near the HQ facing the bridges. Then make the rest of your infantry and distribute them evenly, and make sure you upgrade them with bazookas and give the engineers the flame throwers. Once the attack starts you will own them completely for about half the time, then the arty starts, and once you start taking casualties from it, retreat the targeted area back to HQ and quickly set them up for Defense, once each bridge is pounded by arty retreat them, abandon the AT guns, then they will shell the HQ so you have to pull your guys back to the church asap, make sure you build a couple engineers to build some sandbags and even an mg nest if you can, and then build more paratroopers and put some people in the buildings near the church to cover all directions, then pray. If you bothered to read this, then you will win.