I sent you a friend request, im hoping if i show my comp to you i can explain myself better:) im hoping you could help me.

Of course, I mean, the link is in the description. Just download an use it. Although now that I think of it, I see I could have implemented it in a better way, no promises, but maybe I'll update it in the future. But that's not going to be soon, At best after a month.

would you be willing to share this script for a project im working on?

OK, will be waiting for that.

Nothing finished, but next time I'm ingame I'll take a video - I was making an SCP inspired mission, without using the standard mods available.

BTW, if anyone has done anything with this, I would like to see your work. Post links here in the comments.

NEW MISSION! Run across a hostile city with your balaclava on to retrieve your precious gaming PC. Lockdown Effect

NEW MISSION! Postman's adventures continue in Livonia as he searches for a dangerous missing shimpment and delivers the packages once again. Postman in Livonia

Fantastic!

Well, the teleport script works on single entity. You can call for multiple entities each time. It will be kind of like this:
TeleportCode = compile preprocessfilelinenumbers "scripts\seamless_teleport.sqf";
[Entity1, ...] call TeleportCode;
[Entity2, ...] call TeleportCode;
etc...
Also, this works on soldiers. For vehicles it doesn't work so well, but I guess it's because of velocity. If I did setVelocity on vehicles, maybe it would work alright. I thought about upgrading this script, but since I thought nobody would use it, I decided not to. It was enough for my own needs. But if you want to use it, just ask for it. I could take a look at it again. Only, it might not be soon. It might be in a week or two.

nicely done, although it appears to be limited for a single entity with my knowledge. Is there anyway to make this happen for every entities or just for players with this magical script happens repetitively?

Yeah, it was kind of meant to be like that. Despite that, i found some good uses for it. Like that cave in "Postman in stratis"

this is so trippy wtf

See what you can do with this: See the underground cave of the Templar in Postman in Stratis

And, of course, if you want really seamless teleportation, place it in an area of the house where you cannot see the outside, i.e. away from any windows or open doors. Of course, this is not mandatory and the script will work anyway, but it's just something to keep in mind if you really want the seamless effect.

Forgot to say: I used execVM to call this script. It was simpler for me, but actually execVM starts another thread. Although it seems to work well anyway, if something, maybe you can try:
On initialization somewhere:
TeleportCode = compile PreprocessFileLineNumbers "seamless_teleport_script.sqf";
and then, on teleport trigger:
_handle = [arguments] call TeleportCode;

Here is the link to download this demo mission with all the scripts, you can open it in the eden editor:
https://drive.google.com/file/d/19MR8n4C0aKORycN6WRGAAJZ9i9BP6iaM/view?usp=sharing
The author also grants permission to use any sound effects that come with this demo mission in your own missions.