Crash when shooting.

**livkx**

Let's keep in mind that GMod is a poorly optimised game with poorly written addons. Bundle those two facts into a huge server with a big load that causes stress on clientside and serverside, there's your issue. When (Or rather due to recent events, if) the FA:S weapons are added, we're all cushty. Until then, this is a major issue. Have you tried lowering certain graphics settings? Try playing around with those. I'd also recommend trying out the following launch options (Courtesy of SoulRipper)

Code:
+r_hunkalloclightmaps 0 -heapsize 3145728 +cl_cmdrate 100 +myinfo_bytes 2000 +cl_updaterate 101 +rate 30000 -dxlevel 80 -w 1600 -h 900 -windowed +mat_antialias 8 +mat_forceaniso 16

These options will need to be modified to your personal needs, including the window size and heapsize (RAM dedication). If you need more help with those see Soul's original thread:

Spoiler :

Hope this helps in some way.