Thanks for the kind words @Deltakosh, I’ve created a separate post for Scifi Rogue here: Scifi Rogue - top down / 3rd person shooter game. And yes using Havok with a custom character controller - need to look into the one now available in 8.0 (or was it already a bit before😃).
@thomlucc, yeah the enemies are currently a bit too easy / boring, just standing there waiting for you to shoot them 
Thanks for the link, hadn’t seen that one, was looking at the crowd agents here: Babylon.js docs. Generating the nav mesh itself should be pretty easy as I already have the level (rooms and corridors) as a grid. Maybe also thinking about flow fields if there should be a lot of enemies 