There is no rotation on the pitch axis. - Your prop does not look like it does to other players until you use mouse1/mouse2.
But it is still possible to glitch some of the larger props (Scaffolding) so they are completely hidden inside a wall.
And yes Youme, the intended GamePlay for the CP prop, is that they hide in high-places, making themselves invisible from below, most teams are smart enough to check every roof though.