A rain storm and 5 straight days of heavy, wind blown rain are two different things; if it's breathable, it's not waterproof (period). The wind up here will drive water right through semi-permiable membrane fabrics. I've owned some of the best mountaineering, and hunting raingear in the world and all breathable fabrics will eventually soak through, Gore-Tex or not. (There is nothing ever marketed by Cabela's in the past that I've found to be "waterproof").The Rivers West gear is the closest to rubberized raingear that you're going to find; it keeps all the water off but also turns into a portable sauna, just like rubber. The benefit over rubber is that it's quieter, more durable, vented and camoflaged. I hate wearing mine but it's better than getting soaked...

Anymore, if it's raining that hard I either stay in the tipi with a good book or I stay home. Hunting is supposed to be fun.