added env_cascade_light with Start Disabled set to Yes
added env_ambient_generic to brighten up some dark spots
added a logic_timer that refreshes particles
lowered resolution of cubemaps
added laser to particle rings
fixed stump bhop filter size

hookzones: 
s1startzone
...
s4startzone
s4endzone

the logic_auto should look like this: 
{
"origin" "-9232 -14272.3 6320"
"spawnflags" "1"
"classname" "logic_auto"
"hammerid" "187"
"OnMapSpawn" "tonemapSetAutoExposureMax20-1"
"OnMapSpawn" "tonemapSetAutoExposureMin0.80-1"
"OnMapSpawn" "tonemapSetBloomScale1.10-1"
"OnMapSpawn" "tonemapSetTonemapRate0.20-1"
}

the added logic_timer can fix some stuff with particles, it looks like this: 
{
"origin" "-9232 -14248 6320"
"UseRandomTime" "0"
"StartDisabled" "0"
"spawnflags" "0"
"RefireTime" "30"
"classname" "logic_timer"
"hammerid" "3344209"
"OnTimer" "info_particle_systemDestroyImmediately0-1"
"OnTimer" "info_particle_systemStart0.1-1"
}

the map also uses a point_clientcommand to enable a screenoverlay at the end. 
{
"origin" "-9344 -14976 6240"
"targetname" "cmd"
"classname" "point_clientcommand"
"hammerid" "3110032"
}

If anything is wrong with the port you can message me on discord @ granis#5712