Common knowledge by now I guess, but we have to also have the info on lemmy.
As you might know, the stage bag in Vondel has a guaranteed GPU. There are two stages bags in Vondel, near university and in the southwest of the map.
You need the stage bag key for it.
There is a whole list of keys that eventually lead to the stage bag. Pretty much any key you pick up in Vondel, will eventually lead you to the stage bag. Look at the Google doc to see the entire key chain.
But many people oversee the bridge stash key. This stash contains a guaranteed golden skull. No need to go and farm the chemist with all included risk.
Which means that in a matter of a few hours of play, you can easily extract all the golden skulls and gpus (hardest items to unlock) required.
Rush in with your key, loot what you need and extract. You can be in and out before most other players have left their initial location.
I’ve got all my Stage Keys from HTV contacts in Vodel. Spawns frequently.