Nope Black Mesa does not have one!
A textured flashlight can be added to black mesa by copying a texture to materials/effects
Name it flashlight001.vtf
you can get flashlight textures and change your flashlight like this, I messed about with it thought i would make a detailed flashllight and detail looks horrible on flashlights unless you want to call batman…
Anyway I made a flashlight texture after much messing around, the interesting thing is it will cast dynamic shadows when the texture is applied so it has a performance cost to it but It is a small thing I discovered, here is what I settled on after about 3 hours of mucking about. It’s softer than black mesa’s default flashlight too.
download link
https://www.mediafire.com/download/iuk2soo77pftkba/Flashlight+V2.rar
to uninstall remove the file vtf to revert bact to the plain dynamic light
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