I didn't played the mod, but be4 i bought dayZ i knew there wern't a lot of zombies, loot didn't respawn and it's full of other bugs. i knew this because it's an alpha and there is so much information on the internet about DayZ SA. you also get reminded of it when you open the steam page, when you click on buy, when you click accept on payment and everytime you start the game. I don't know what the Dev's could have done more to warn you. up until now i never starved, dehydrated or had trouble finding any loot. zombies only killed me in my 1st life and the rest of the time i get KOS'd. I just have to work on my stealth skills and it's gonna take time.