This update was to address some issues, mainly that it crashes on some servers.
-Renamed map from "trade_balloonfarm_halloween" to "trade_balloonfarm_event" to decrease name length (Though I am unsure if this changes much, I have had issues with bsp names causing issues at long name lengths.)
-Updated all grass textures to not use "Detail Prop" Variant.
-Adjusted ropes and rope settings.
-Reduced amount of lights, especially around the balloon field.
-Fixed Underworld fog model poking out into void .
-Removed Power 4 Displacement and using very low luxel scale on a lot of displacements.
-Reduced overall particles, removed most particles in underworld and some in overworld.
-Reduced overall entity count.
-Fixed some potentially weird props and prop settings.
-General optimizations to many props, and fixed/removed collisions.
-Reduced file size from 23MB to 19MB.
Hopefully these changes will help both increase framerates a bit, and be more stable on servers!