And to also expect some level of precision flying as well? I may not have a supreme PC, but my Ryzen 5800X and 16 GB of RAM were being dragged down to single digit FPS, despite being able to run other (also self-hosted) missions in Arma at 30+ FPS.

This mission does look promising, I want to play around with it some to see if my group can get this working for what we have.

Update: I was able to find the interact point to pick up the intel and start, but because of how you had it, and the other pictures, it is again exceedingly finicky for trying to get just so to find the interact point. For the initial item to grab it felt like it was a 3 pixel window.

Performance wise, this was dragging my PC down to single digits at times with all the particle effects you were having run across the entire map, and the constant cluster shells you set to be fired at the airbase. Did this look impressive? Yes. Did it set a tense scene and tone? Yes. Is it worth making it nigh on unplayable especially if you are expecting players to not use a dedicated server (and thus, also headless clients) and run this on a self-hosted environment, meaning that we can't get performance boosts by allowing the mission server to handle the overall mission while headless clients take over the AI to spread the load out. CONT...

I was trying out your mission, and the interact point for ending the mission by talking with the NPC at the Helo base is extra finicky to interact with. Additionally, the item that you have is not giving me any sort of interact prompt (presuming that it's the "Top Secret" labelled file folder that yuo had the cinematic dramatically zoom in and focus on.)

I'll be seeing what I can figure out about the whole shebang, and will update if I find that I had a PEBKAC error or some other solution presents itself.

A singleplayer version of The Fall of Khe Sanh (with extended intro cinematics) can be found here: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2863267263