Yep. A scene conceived when they were lateral turrets on the "linear" Falcon, handwaved for the top-and-bottom of the saucer Falcon. And one of the reasons the interior set just don't work. Given the structure of the assembly as seen as a discrete unit (guns, gunnery stations, ladder, access door), the ladder is mounted on the forward wall of the access tube (not an oblique angle), the door is in the aft wall of the tube (not the opposite oblique angle), and when the gunners get up (or down) to the turret, stepping out of the ladderwell the forward wall of the turret becomes "down". For both, I'd imagine it suddenly shifts from feeling like you're climbing a ladder to crawling on all fours.
Boba Fett's ship also has this feature. When landed the pilot is facing up, relative to the landing surface. Not really sure how the rotating cockpit became a thing when the fixed cockpit is shown in both ESB and AOTC.
Boba Fett's ship also has this feature. When landed the pilot is facing up, relative to the landing surface. Not really sure how the rotating cockpit became a thing when the fixed cockpit is shown in both ESB and AOTC.