Got some stuff to report.
Firstly my hunting for the Shotgun Ammo Glitch is shaping up but I can't trigger it. I don't know what you meant by "Sporadically" but on my end it's pretty much "Never" O_o
1_ I confirm that Highwire's 870 triggers the glitch ALWAYS. With or without cheats, with or without upgrades. Difference > When using alternate ammo, it keeps consuming regular ammo countrary to other guns.
2_ James's Browning Auto-5 still doesn't switch to regular shells automatically when running out of alternate one.
Fortunately it doesn't trigger the ammo glitch like it used to.
3_ James's 1911 consumes normal bullets when firing silver ones BUT only if dual wielded (1 normal bullet consumed per silver shot). When Single Wielded it shows normal behavior.
4_ Merlijn has 2 left hands when climbing ladders >>
5_ The 2 American flags on the Ghost Ship are inverted, patriots aren't gonna like this >>
The alt-ammo to normal-ammo conversion glitch I had described with Mikko's MSC-12, in the previous post, happens to many shotguns, all the ones I tested so far. It's highly possible that ALL shotguns do. Remember, you load alternate shells, and switch to other alternate shells, it will give you the equivalent in normal shells. (Still gives you the ammo back for what I tested).
I'm gonna keep testing stuff because I want to see if there is still that glitch that makes you consume loaded alt-shells even though you didn't even fire them. And I'm still trying to replicate the ammo glitch with another gun than Highwire's but it seems as if it's no longer possible >_> Maybe James has touched something he shouldn't have in his version ?