2D / 3D HYBRIT GAME

Hello guys. I am new at unreal engine and i want to make 2d/3d hybrit game. As you can see in the video bellow i dont want that camera collision but i dont want clipping camera tho. So i want use my mouse to move camera up and down or left and right. And the character should always face away from the camera and move in the direction the camera is looking when the ‘W’ key is pressed. Can someone help me with that