You guys are thinking to big on the weapons, don't forget there is a large chance you will have to travel with the weapons. and most likely after a while your only source of transportation will be by foot, think smaller, pistols, smaller SMGs. Also, one other thing on guns, don't be so set forth on having massive guns and massive ammo, don't forget, ammo needs to be manufactured, and if manufactures no longer exist, and you don't know how to manufacture your own ammo in massive amounts in little time, then, well your screwed. Go back before guns, swords, knifes, edged weapons, they will work great, especially in a zombie scenario, most well made swords will not break easily at all and if maintained correctly, then they will last a very long time. Also, remember, you don't need ammo when using a sword. Also most swords are lightweight so unless you are planning on carrying around a big two-handed sword (which trust me thy are HEAVY) traveling will be made extremely easy. Oh, and make sure the girls are very loving