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Maybe someone can share some light on this? Why were there HECU marines in Xen? I've read that it was suppose to be Earth, but Valve couldn't have more than one skybox since it was Goldsource in the OG. However, in the Half-life PS2 port (bottom one), Gearbox changed the skybox texture to black to fix this issue I'm guessing. 

Anyways, I thought I could get some random answers since I just beat the PS2 Port and this thought of mine came back again. Originally, I like to have thought some of the HECU Marines invaded Xen or they just got teleported there... or maybe they aren't actually there.
Maybe someone can share some light on this? Why were there HECU marines in Xen? I've read that it was suppose to be Earth, but Valve couldn't have more than one skybox since it was Goldsource in the OG. However, in the Half-life PS2 port (bottom one), Gearbox changed the skybox texture to black to fix this issue I'm guessing. 

Anyways, I thought I could get some random answers since I just beat the PS2 Port and this thought of mine came back again. Originally, I like to have thought some of the HECU Marines invaded Xen or they just got teleported there... or maybe they aren't actually there.

Maybe someone can share some light on this? Why were there HECU marines in Xen? I've read that it was suppose to be Earth, but Valve couldn't have more than one skybox since it was Goldsource in the OG. However, in the Half-life PS2 port (bottom one), Gearbox changed the skybox texture to black to fix this issue I'm guessing. Anyways, I thought I could get some random answers since I just beat the PS2 Port and this thought of mine came back again. Originally, I like to have thought some of the HECU Marines invaded Xen or they just got teleported there... or maybe they aren't actually there.

Magic Nipples
Magic Nipples
Oct 7, 2021

While the engine is very capable of switching skyboxes on the fly (Xash 3D, and I'm fairly certain other Quake source ports can also do this) Valve didn't do this. Either out of forgetting, not having enough time, inexperience, etc.

λlex
λlex
Oct 7, 2021

Don’t hold me on this but I have some recollection of this being a technical thing due to maps only allowing 1 skybox.