If you wish to watch the video, you can watch it here!
www.youtube.com/watch?v=-RDb...

I then used the Rokoko plugin to remap all the roblox character animations onto the Half-Life models. I then added a few extra details and effects and the video was complete!

For the finishing touch, I removed all the lighting and manually baked shadows for the entire map. I also used a special node setup to recreate character lighting.

I then added textures, all of the textures come from Half-Life and it's expansions, including CS 1.6.

I started by modelling out the map, using the original as reference.