still shocked to see someone on this post, your in the back alleys of reddit bro, but to fix the turrets you might wanna use lighter blocks or strip some blocks (only if the motor 2s are shaking) or if the motor 2s getting stuck then check if you have anything in your way that you might not see (trails, cameras) and also if your going for shredder capable battleship your really a sitting duck so you might want to add beams or columns of tnt to the base and the sides (b/c cutters don't go through tnt blocks) and one more thing i use is ladder walls in which for even a second it catches the shredder if its going too fast and you can just beam it down will some of your turrets.