Question Guide on Creating custom maps (CUA environment)/Porting maps from other games like HS2?

[ordinarymann47]

Pardon me if I overlooked an obvious answer to that somewhere, but I haven't found a definitive answer. I just need a few pointers, mainly on how things get imported from games into Unity and exported to games from Unity. VAM is extremely overshadowed by HS2 in terms of how many quality free environments are available and I aim to spend some free time to learn how to fix that and benefit the community in the process.