I have a working L4D2 rig for 3dsmax 2010 and up. It works perfectly fine, and camera motion is also working. I'll release the rig sometime soon, alongside this animation. :3
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https://www.youtube.com/watch?v=p7voiJi5_C0
I re-recorded everything after changing some Dxtory settings.
Link: http://csgo.gamebanana.com/skins/125515
Song: http://www.youtube.com/watch?v=QHZfa8ihErM
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https://www.youtube.com/watch?v=bOT2uS_r3d4
why did i make this
Animation by Kay Yu: https://twitter.com/kaynimatic/status/1285869984334282754
Tyrone by Tyrone: https://www.youtube.com/watch?v=K3beOu90Byw
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https://www.youtube.com/watch?v=VO36sL-Jyhs