SourceOps
Join the discord:
https://discord.gg/N35zhHm
Only works with blender 2.80 and 2.81.
Has some tools for surf mapping.
Please let me know if something doesn't work.
Basic Guide
Adding a game
Go to the settings panel.
Press the plus button to add a new game to the list.
Press the folder button and browse to your game's gameinfo.txt file.
If the path is incorrect, the game's name will be Invalid Game.
Adding a model
Go to the Model Export panel.
Click the plus button to add a new model to the list.
Double click the name in the list to edit it.
Select your collections for reference, collision, etc.
Press Export Meshes, Generate QC, and Compile QC to export your model.