Refresh: Upward f12

Credit to Hamn for his work on this version

• Changed the doors in dropdown to never be opened after closing
• Changed the doors in dropdown from silent to making a sound when closing

Fixed detail brushes flickering on 1st point
Fixed some lighting issues
Fixed some props and brushes being solid
Fixed water brushes in skybox with various cubemaps
Fixed unoptimized visleaves next to the hill
Fixed floating barrel near 2nd
Improved clip alignment under balcony on 3rd
Added blockbullets in front of window and dropdown-elbow
Added more func_occluders
Added resupply sign on last RED last spawn
Reduced t-junction and edicts (func_brush)

Credit to Hamn for his work on this version

Added back occluders from stock upward
Added more hints, areaportals and occluders for optimization
Redone skybox brushes for optimization

Credit to Hondjo and Bereth for their work on this version

Fixed the catwalk roof on third
Improved splash handling by removing leftover spawn signs collision
Added clip to window on last near dropdown
Brought back PC props instead of the resupply cabinet in last spawn

Credit to Hondjo and Bereth for their work on this version

Fixed non-solid roof on bridge on 3rd

Credit to Hondjo and Bereth for their work on this version

Fixed wrap assassin bug on last

Credit to Bereth for his work on this version

Added cubemaps
Fixed some texture misalignments
Improved some blockbullets in tunnel and playground on 2nd

Credit to Hondjo and Bereth for their work on this version

Fixed textures overwriting on other maps
Small clipping and splash improvements across the map

Credit to Hondjo for his work on this version

-replaced clipbrushes with blockbullets in:
backstairs last, balcony/window second, house second-third, banana last, spiral last, b house second
-fixed misaligned fire extinguisher on last.
-support beams on last upper no longer bounce stickies
-fixed overlay ammo patch in dropdown/window second.
-changed cabinet in spawn to no longer have shadows and prevent doors clipping out

Credit to Hondjo for his work on this version

-reworked sign behaviour around the map to avoid solidity/visibility issues
-improved clipping around first point under playground and blue side of the cliff-bridge
-improved clipping in spiral
-improved clipping around the metal vertical beams and curbs under point on last
-improved clipping under heavy balcony on third
-improved splash around first-tunnel entrance wall

• Removed remaining bush on flank side of First
• Corrected floating windows and boards above Second
• Removed new hiding spot along Blue base
• Removed new hiding spot above First
• Fixed gap between the wood and dirt on First
• Attached a lightswitch wire to the ceiling on Third