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CSS Hidden MP5 Improved / HQ Model

Beware! this mod uses a custom script to make the weapon right-handed. That can cause problems with some servers. As such...
1.) Restart your game after installing the addon!
2.) It's recommended you add "sv_consistency 0" to your autoexec.cfg.
3.) If it still flips in game, go to your left4dead2 folder, find "addons\workshop" and move vpk addon into "addons" folder.

Credits:
arby26 - mp5, animations
Querentin - compile, animations, shaders, AO

Make sure to override game's AA settings with your video card software because in-game AA leaves all the geometric edges within the model aliased.