Restore Ragoll Death Poses for NPCS
I'm not sure if this was ever in Synergy but hl2 originally had death posed ragdolls for the metropolice and combine soldiers (and maybe more npcs) that would have different death poses depending on where they were shot. This was broken since 2007 but got fixed for hl2 early this year.
Here's a video showcasing it: https://www.youtube.com/watch?v=6FUR4lh7RJU