Sometimes I get in games with zero issues, and the game is very enjoyable to play as an invader, shots register etc. Other times I get into games I can only assume are on the other side of the world and I lag literally every other second making the game utterly unplayable. Colt is invisible, the shots I hit don't register, etc. There should be a region lock setting at a bare minimum, I don't know how this has not been fixed yet.

i don't think it's a region distance issue. I've read that a LOT of people have a lag switch on this game.

2 days ago i got into a game, everything was fine. NPC walking around just fine. As soon as i shot my first bullet at colt, the game started lagging, i get being rubber banded constantly, and colt just walked up to me and shot me point blank with a shotgun.

Insane.

It was fine for one match last night.
Now it is the worst rubber banding experience (possibly the worst as I couldn't walk 5 paces without being yoinked backwards) I've had since the early 2000s on F2P FPS games that have no servers, were peer to peer and so poorly coded that you could rename maps to their Christmas special versions and access secret areas that nobody could kill you at, just by changing a few letters in the files.
I ran a speed test (to a server on the other side of the Atlantic ocean) during this and was pulling 60Mbits a second (I usually get 110 but it's WiFi and the server was thousands of miles a way so fluctuations and drops are expected) and a ping of 110, which is an okay ping for a server half way around the world.

The way this ran it felt like the signal was being bounced around the world 4 times then off the moon, back again and then finally back to a punched card machine in my country which read the 1s and 0s and then sent it to my laptop.

In short it made Stadia look like a pro-gamer platform.