Pretty much any commercially made trail cam out there should be weather proof as is out of the box you should not have to add a case to it to make it same in the rain. I have left cameras out for an entire year without problems. When you add a case; ammo box or otter box you need to get the camera lense, the sensor, and the IR flash sealed tight to the added plastic case there can not be a gap between otherwise the camera will trigger wrong and picture quality will be horrible as the air space will leave a shadow or blurry spot for the camera to shoot off of. Guys build there own cameras using ammo boxes as the chassis but that is a whole nother ball of wax. You should not have worries about the rain with your wildgame.
