Resolved Strange Flickering on Collision

Hello. For my tank game, the player tank moves with a Character Controller. When I collide with a wall, the player doesn't go through, and everything is fine. But, if I destroy one wall, then my game starts acting strange; objects start disappearing and then showing back up, weird shadows coming out of nowhere, etc. Why is this happening? Thanks to anyone who answers.

 

Ok, so I fixed it, the problem is Occlusion Culling, just like I suspected. Turning it off fixed the issue for me. Hope this helps someone in the future...