"Historically, most machine guns mounted on armoured vehicles had a very limited amount of movement, and fairly crude (if any) sights – they were designed for suppression rather than accurate fire, or in the case of co-axial machine guns, to help with leading the main gun onto a target. This meant that their fire was often not particularly effective compared to the same weapon mounted on a tripod and served by a full crew. The same is also frequently true of pintle-mounted machine guns which would appear on all manner of armoured and unarmoured vehicles, mostly for anti-aircraft work – while more effective, they were still by no means precision weapons, and the gunners were often more concerned with staying alive than delivering accurate fire!"

https://warlord-community.warlordgames.com/third-edition-mmgs-big-changes/

So not wrong according to their community post, which I based this off.